Last Updated: January 29th, 2020
Disclosure: As an Amazon Associate I earn from qualifying purchases at no extra cost you. If you want to know more check here.
They are pressurized by the treadmill impact and also by the weight of the body.
Hence, your treadmill should be able to absorb the shock from running.
Also, it should be able to handle your weight.
Our preference is Sole Fitness F85 Folding Treadmill.
It excels in shock absorption and is capable of handling up to 400 lbs.
Also, the running machine itself is of very high quality and is comparable to commercial treadmills found in gyms and elite clubs.
It you don’t like the above option, here are the other best treadmill for heavy runners.
Our Top Picks
“4.0 CHP and can handle a weight up to 400 lbs.”
“Quiet Drive Motor is capable of handling 400 lbs.”
On this page
- ✅ 15 Best Treadmill For Heavy Runners – Detailed Review
- 1. Sole Fitness F85 Folding Treadmill
- 2. ProGear HCXL 4000 Ultimate High Capacity Extra Wide Treadmill
- 3. Sole Fitness TT8 Light Commercial Non-Folding Treadmill
- 4. Sole Fitness F80 Folding Treadmill
- 5. LifeSpan TR1200-DT5 Treadmill Desk
- 6. ProForm Pro 2000 Treadmill
- 7. LifeSpan TR4000i Folding Treadmill
- 8. ProForm 905 CST Treadmill
- 9. ProForm 705 CST Treadmill
- 10. NordicTrack T 6.5 Series
- 11. LifeSpan TR1200i Folding Treadmill
- 12. Weslo Cadence G 5.9 Teadmill Series
- 13. Confidence Motorized Electric Folding Treadmill Running Machine
- 14. Weslo Cadence R 5.2 Treadmill
- 15. Sole TT9 Treadmill
- • Our Top Pick
- • FAQs
Best Treadmill for Heavy Runners in 2020 (Our top 6 of 16)
|#||Product||Weight Capacity||BPG Rating|
|1||Sole Fitness F85 Folding Treadmill||400 lbs.|
|2||ProGear HCXL 4000 Ultimate High Capacity Extra Wide Treadmill||400 lbs.|
|3||Sole Fitness TT8 Light Commercial Non-Folding Treadmill||400 lbs.|
|4||Sole Fitness F80 Folding Treadmill||375 lbs.|
|5||LifeSpan TR1200-DT5 Treadmill Desk|
|6||ProForm Pro 2000 Treadmill||350 lbs.|
|Weight Capacity:||400 lbs.|
Sole Fitness F85 Folding Treadmill is one of the best folding treadmills in the market.
It has everything a runner needs and to top it all, it can support up to 400 lbs very easily.
This makes it great for heavier runners or a beginner.
It comes with very good proprietary cushioning called Cushion Flex Whisper Desk.
This reduces stress on your joints by almost 40% than that of asphalt.
It also has one of the quietest motors of 4.0 CHP, DC Type motor with 0.5 to 12 mph speed range.
Also, it has an automatic incline of 0-15% and comes with two ply belt, pulse grip and chest strap monitor.
It has a 10.1 inch graphic workout display and a secure tablet holder.
Using its Bluetooth connection, you can use your tablet as the workout monitor and share your workout session data using wireless apps.
It has 6 built in workout programs, two custom programs, two heart programs.
This treadmill comes with 2.75 inch rollers and is very spacious.
It measures 35 by 58 by 80 inches (W X H X D). The deck is 35 by 80 inches (W X D) and the running surface is 22 by 60 inches (W X D).
It has lifetime warranty on frame, motor, deck and a 5 year warranty on electronics and 2 years on labor.
|Weight Capacity:||400 lbs.|
This treadmill is capable of supporting a weight up-to 400 lbs. and is built for people of a heavier built.
It comes with an extra wide track of 20 inch width. These are the same as you find in sports and fitness clubs.
The overall track dimension is 40 inch L X 20 inch W.
The above model from Sole has disadvantage. Their side rails are short.
Some of the runners find that annoying. However, with this ProGear, you will not face such a problem.
Their side rails are long. To be precise, they are 18 inch in length which is more than two times the length of an standard treadmill.
Also, it has heart pulse sensor integrated on it. This sensor helps you to measure your target heart rate zone.
This value comes handy, if you are trying to lose weight.
If you run for 30 min to 45 min at 80% of your target heart rate zone, then you will be able to lose your weight faster.
Also, for ease of operation, the speed control buttons are integrated on the handle bar.
You can adjust the speed in increments of 1/10th of a mile per hour to a maximum of 4 mile per hour.
The LCD display monitor capture every thing your need measured,like elapsed time,distance walked, calorie burn, speed and pulse monitoring.
Also, you can easily fold and transport it for your convenience. It comes with 5 years of motor warranty.
|Weight Capacity:||400 lbs.|
TT of this Sole Fitness TT8 stands for twenty two which means the width of the track is twenty two inches.
This extra width helps your to run care-free and without the worry of wrong positioning.
In a way this running machine provides you with an environment which is safe and comfortable and an support up-to 400 lbs.
Like many other Sole Treadmills, this one also comes with a 4.0 CHP, DC motor with 0.5-12 mph speed range.
This type of motor makes very less noise and you can concentrate more on your running without any distraction.
It has a 0-15% rack and pinion design incline and can be automatically adjusted.
It comes with a two-ply belt, pulse grip and chest strap heart rate monitoring and a standard set of 10 programs of which 2 can be user customized.
Measuring 37 by 57 by 83 inches (W x H x D); deck measures 37 by 80 inches (W x D) and running surface measures 22 by 60 inches (W x D), it comes with 3 inch roller which are way bigger than any standard treadmill rollers.
Warranties include, a lifetime warranty on frame, motor and deck, five year warranty on electronics and two years on labor.
Also, it comes with a pretty big display of 9 inches. This makes monitoring your stats pretty easy.
|Weight Capacity:||375 lbs.|
Comes with a proprietary cushioning called Cushion Flex Whisper Deck.
This kind of deck has been shown to reduce the impact on joints by almost 40% according to some studies.
It has a little less powerful motor than F85. The 3.5 CHP, DC type motor is almost noiseless and comes with a speed range of 0.5-12 mph.
The automatic incline can go from 0-15% and comes with a two-ply belt, pulse grip and strap on heart monitor.
All these, are pretty much standard with all Sole treadmills and are makes them stand apart from their competition.
Any Sole treadmill comes with a set of 10 programs. Out of which two can be set-up by the users and F80 is also no exception.
It also has cooling fan and mp3 compatible sound system with a 7 inch display.
Measuring almost 35 by 58 by 80 inches (W x H x D); deck measures 35 by 80 inches (W x D), running surface measures 22 by 60 inches (W x D), it comes with 2.75 inch rollers.
Also, it is capable of supporting a weight up-to 375 lbs which is sufficient in most of the cases.
If you need a higher weight support, you can pick any of the above three models.
It comes with all the standard warranties of Sole like lifetime on frame, motor, and deck; five years on electronics; and two years on labor.
|Weight Capacity:||350 lbs.|
Lifespan TR1200-DT5 treadmill desk combines two aspects of your life into one.
If you are a busy individual who have very less spare time and have to forego workout for time crunch, then this is your ideal solution.
It comes with a manual height adjustable standing desk and Lifespan’s under desk treadmill base.
This is a very compact motorized unit which measures, 68.5 inch x 28.5 inch (L x W) with a large desktop surface area of 38 inch x 29 inch (W x D).
This makes this Treadmill desk perfect ergonomically and you can work with your laptop or computer with relative ease while working out.
It has a high capacity electric motor of 2.25 HP and is very silent.
Your walking track is also comfortably wide and has a dimension of 20 inch X 50 inch.
It comes with portable wheels for easy transport and can be stored away safely.
On the console you will get distance traveled, calories burned, walk and run time, step count.
You can also adjust the speed of the belt from 0.4 mph to 4 mph.
Also, you can easily sync the Bluetooth of this device with your Android or iPhone using LifeSpan’s free Active Trac app to track your progress.
It can support user weight up to 350 lbs.
|Weight Capacity:||350 lbs.|
Proform Pro 2000 treadmill is designed for any kind of runner and is a long term investment if you are starting out.
Also, in the beginning most of the newbies tend to be overweight. This treadmill is perfect for them and can support a weight up-to 350 lbs.
It also comes with a host of additional features that makes this easy to use and very user friendly.
The display of this treadmill is 7 inches and will provide you with information like mileage, speed, approximate calorie burn, heart rate and time.
For easy visibility, this display is back-lit and you can check your stats just at a glance.
It comes with ProShox cushioning which reduces stress on your joints and keeps them protected.
It comes with a 3.5 CHP Mach Z Commercial Pro Motor which is great with performance and is not as noisy.
Some of the other notable features of this treadmill are:
- 12 MPH QuickSpeed Control
- -3% Quick Decline Control
- 15% Quick Incline Control
- 32 Workout Apps
- 20″ x 60″ 2-Ply Commercial Tread Belt
- SpaceSaver Design with EasyLift Assist
- 2.5″ Precision Machined and Balanced Non-Flex Rear Roller
- CoolAire Workout Fan
- iFit Live Technology Compatible
- Strap on Heart rate monitor included
- Compatible Music Port for iPod
- Daily coach guided workouts
Warranties include Lifetime Frame and Motor Warranty, a 5-Year Parts Warranty and a 2-Year Labor Warranty.
|Weight Capacity:||350 lbs.|
This running machine can be ideal if you have a small space. You can easily fold it and can port it for easy storage.
It is a heavy duty treadmill and has a capacity to support up-to 350 lbs.
It comes with a 3.25 HP motor and a comfortably wide walking track of 20 inches by 60 inches.
You can also adjust the incline to 15 different levels giving you the perfect hill workout.
This is a quiet and lightweight treadmill. However, the folding is manual.
It comes with 21 easy to use programs for healthy living, weight loss, sports training, heart rate program.
It also comes with Bluetooth connectivity and can be synced with your smartphone to create a history of your fitness.
Each exercise program included in this treadmill is designed with the help of exercise physiologists and will help to boost your cardiovascular fitness, boost your health and burn fat.
In the console, you will be able to view time, calorie burned, distance, steps, heart rate, speed, incline level, pace and elevation change.
It comes with 8 compression shocks which provides protection to your knees, back and joints from impact.
Also, it includes the following warranties: lifetime on frame and motor, 5 years on equipment parts, 1 year on labor.
Note: Bluetooth-capable equipment requires a LifeSpan Bluetooth adapter, sold separately
|Weight Capacity:||350 lbs.|
NOTE: When you first start the treadmill, all the buttons will be locked out.
You can enable it by going online and subscribing for a monthly subscription.
This is very annoying if you cannot use a great treadmill after paying for it.
Solution: Hold the iFit sync (or Bluetooth button) for 20 seconds or until you hear a ‘beep’ or ‘two beeps’. Here is the step-by-step instructions as described by the user.
If you want a comparatively compact treadmill which is of athletic quality, then you can try out ProForm 905 CST.
This is a powerful treadmill which comes with 3.0 CHP drive system.
It has 20 inch by 60 inch walking belt and Proshox cushioning.
This cushioning will help you to have less stress on your joints especially on your knees and ankles.
It comes with a digital quick speed control of 0 -12 MPH,digital quick incline control of 0 – 12%.
To provide you with an effective workout, it comes with 30 preset workout apps and EKG grip pulse.
It also has a iFit Bluetooth Smart Chest strap. This is included with the treadmill.
This enables you to workout in your heart rate zone for maximum fat burning.
One of the best feature of this treadmill is that, it comes with iFit Studio Classes which is on demand video workouts.
Your trainer will control the treadmill’s incline and speed so that you can easily follow along without losing momentum.
The motor that comes with this treadmill is of commercial grade and is built with high grade components.
They stay cool even with the toughest of the workouts to create a smooth and powerful feel and is very silent.
It comes with a 5 inch back lit display where you can check all the required stats at a glance.
Warranties include, Lifetime Frame and Motor Warranty, 3 years parts and 1 year labor warranty.
|Weight Capacity:||325 lbs.|
This is also a high quality treadmill built for heavier runners.
It is capable of tackling a weight of up-to 325 lbs.
The walking/running belt is 20 inch by 60 inch which is comfortable and spacious enough for any person.
It comes with 0-12 mph digital QuickSpeed control and 0-12% Quick incline control.
This makes it very easy for you to have a lot of variations in the workout.
And if you are not sure about what to include in your running workout, then you may choose from 21 inbuilt workouts that come with this running machine.
It also comes with great cushioning due to Proshox cushioning and has a space saver design and integrated tablet holder.
Also, the 2.75 CHP drive system motor is almost noiseless and stays stable even under high amount of workout.
It is an iFit ready system and you can use this to workout with on demand videos.
On the warranty front, you get a lifetime warranty on frame and motor, 2 years warranty on parts and 1 year warranty on labor.
|Weight Capacity:||300 lbs.|
This treadmill is capable of handling a weight of around 300 lbs.
Due to this, this running machine is very sturdy and long lasting.
It comes with a 5 inch back-lit display which shows your speed, time, distance,heart rate and calories burnt.
Also, you have endless possible workouts as you can create your custom workout by selecting different routes from Google Maps.
The treadmill belt is 20 inch by 55 inch and you an select between two types of cushioning – FlexSelect Cushioning and Firm Deck.
You can make this adjustment by turning a simple knob.
Also, you can easily control the incline from 0 – 10% with the touch of a button.
The motor of this treadmill is 2.6 CHP and is not at all noisy.
This machine is iFit compatible and comes with 1 month free membership where you get access to thousands of instructor lead workout videos.
This will be able to help you reach your goal faster.
Warranties include lifetime frame warranty, 25 year motor warranty, 1 year parts and labor.
|Weight Capacity:||300 lbs.|
This is a heavy duty treadmill from LifeSpan which is very space efficient.
It’s setup height is 7.5 inches and It can be easily folded and ported.
This treadmill has a motor of 2.5 HP and comes with a large walking belt of 20 inch by 56 inch.
You may also adjust the incline at 15 different level and giving you the desired level of workout.
This treadmill operates quietly and is lightweight. Since you can manually fold it, you an easily store it in home or in office.
With the console you can track time, calories, distance, speed and many more stats.
If you are looking for weight loss, then you can choose from 21 training programs that are built in to this treadmill.
Also, you can easily connect your device to this machine using Bluetooth.
Another great feature of this treadmill is that, you can save your workout data into a USB drive.
Just plug it in to the built in port of the console, and your data will be saved automatically every 20 secs.
You can then upload your data to your Club account and monitor your progress over time.
Also, it comes with Intelli-Step, which is the most accurate step counting feature available and records every stride you take.
Lifetime warranty on Frame and Motor and can manage a user weight of up-to 300 lbs.
|Weight Capacity:||275 lbs.|
This is one of the most affordable treadmill and can manage a weight of around 275 lbs.
The motor is 2.25 HP Drive system and is very durable. The treadmill belt is pretty decent.
It has a width of 16 inches and a length of 50 inches. However, this treadmills are not for users above 6 feet.
So that your joints are stressed less, this treadmill has Comfort cell cushioning.
This makes you more comfortable during the workout and helps you to recover faster.
It is a foldable treadmill and comes with Weslo’s innovative SpaceSaver design.
You can easily port them to a convenient storage location after folding as they have in built wheels.
Also, with this treadmill, you get a 30 day free membership from iFit and access to iFit Studio Classes, that you can take from your home.
It comes with 1 year motor warranty and 90 day parts and labor warranty.
It also has integrated tablet holder which is placed at a convenient distance from you.
If you wish to make your workout more challenging, then you can change the incline of this treadmill.
It comes with two level of incline, however, you have to adjust it manually.
|Weight Capacity:||250 lbs.|
You can easily fold this treadmill and port it to a convenient location.
Also, due to less height of the folded machine, you can store it under any bed or in a corner.
It has an almost noiseless motor which can be support a user weight up-to 250 lbs and has a warranty of 12 months.
There are 12 in-built programs for any kind of workout including weight loss.
These programs are designed by expert fitness trainers and are good for people of any fitness level.
However, it is advisable that you consult your physician before stating with any new fitness routine.
It comes with a decent sized back-lit LCD display which can track speed, time, distance and calorie burn.
You will also get a wide range of speed up-to 10 km/hr.
There are individual buttons for 2 KM/HR, 4 KM/HR, 6 KM/HR, 8 KM/HR and 10 KM/HR.
Also, there are buttons to increase your speed incrementally if you don’t want to jump from 8 KM/HR to 10 KM/HR.
The running deck is 24.8 inch by 55.3 inch and is spacious enough for any runner.
It is a lightweight machine weighing only 57 pounds and you can easily fold it. However, the folding mechanism is manual.
|Weight Capacity:||250 lbs.|
This treadmill comes with a 2.5 HP impulse max motor which makes this running machine ideal for interval, speed or endurance training.
Also, it doesn’t produce much of a noise as it cools internal components.
The running belt is 16 inch by 50 inch and is perfect for users of any height.
It comes with Comfort Cell Cushioning which reduces impact on your joints for a more comfortable workout.
You can quickly change the incline and set it to any of the 2 positions for a more intense workout.
This running machine implements SpaceSaver design. You can easily fold it and transport it with the wheels.
It comes with a large LCD display using which you can track your speed, time, distance and calories burned.
You will be able to track your progress when it happens.
It comes with 6 workout apps which will assist you on your weight loss journey.
Warranty includes 90 days on parts, motor and labor and it is capable of supporting up-to 250 lbs.
|Weight Capacity:||450 lbs.|
If you are on the heavier side of the scale say, around 450 lbs., this is the machine for you.
It comes with a commercial-grade 4.0 continuous-duty horsepower motor (CHP) and 10 lb commercial grade flywheel which produces smooth, consistent power.
It comes with 15 levels of incline and 6 levels of decline perfect for any kind of user.
It has a 22 inch by a 60-inch running surface with a four-ply belt and a 3-inch roller.
This increases the longevity of this treadmill and makes it low maintenance.
Also, it comes with Bluetooth feature using which you can sync all your fitness data.
This helps you to monitor your progress over time and keeps your motivation level high.
The display itself is large and measures 10 inches. It is a touch screen display and comes integrated with a browser.
It is also, equipped with integrated tablet holder, Bluetooth audio speakers, and a charging USB port.
The deck is “whisper quiet” and is reversible. It includes a lifetime warranty on frame, motor, and deck.
It also covers, onsite repairs and provides other protections to buyers.
The deck itself is shock absorbent providing you a safe environment for working out.
It also, comes with 10 standard programs and is excellent for providing you with all types of workout.
Q) What is the best treadmill for a heavy person?
A: Any treadmill in the above list is best for a heavy person.
However, if you want to zero-in on a choice, go for Sole Fitness F85 Folding Treadmill
It is ideal for any person and can support a weight of up to 400 lbs.
This is more than sufficient if you are looking for something for home workout.
Also, the motor of this running machine is also very powerful with 4.0 CHP.
The running deck is also wide and is very shock absorbing.
This is great for your knees and other joints and it reduces any up and down bounce of your body.
Plus, it comes with an excellent warranty which will come in handy, in case you face any issue.
Q) Do treadmills have a weight limit?
A: Yes, treadmills have a weight limit.
Not all of them are built the same. Some are built for people of lighter weight.
Some are made for heavier (or tall) people.
So, it is very much required that you should check the weight limit when buying.
If you put more weight on a running machine than it is capable of handling, you will end up damaging the machine.
This damage will also not be covered by the warranty.
However, treadmills with a higher weight limit are generally pricier.
On the flip side, they provide you with many more features and sometimes virtual instructor-led workouts.
However, if you are looking for an affordable treadmill with high weight capacity, go for ProGear HCXL 4000 Ultimate High Capacity Extra Wide Treadmill.
The are good and comes with a comparable warranty as their pricier counter parts.
Q) What are the best brands of treadmills?
A: Here are some best brands for Treadmills:
However, each of them specializes in some areas like Sole is more on the Premium side and you will find the even in Elite Clubs.
Where as Exerpeutic is more for recovery patients.
Do, some research based on your requirements and choose the one which suits you best.
Q) How much does a treadmill weigh?
A: Weight of a treadmill varies greatly.
There are treadmills which can weigh as little as 50 pounds and there are some which may weight more than 450 pounds.
Typically commercial grade treadmills weigh more as they are built to endure more wear and tear.
This is not the case with weighing machines meat for home use.
They are on the lighter side of scale and most of the time easily portable.
Q) Is manual treadmill better than automatic?
A: Automatic treadmills are better than manual treadmills.
Here are some reasons:
- It is very difficult to run on a manual treadmill.This may put more stress on your joints.
- Due to its limitations, you will be running most of the time at a single incline during your entire workout.
- They will be only as fast as you are. If on some days you don’t want to push yourself, your treadmill will be slower and you will not have an effective workout.
- It is also very difficult to maintain a steady pace on a manual treadmill as there is no support from your treadmill.
The only benefit of manual treadmill over automatic treadmill is the cost. Generally the manual ones are cheaper than the automatic ones.
Q) Are treadmills bad for you?
A: No, treadmills are not bad for you at least not all of them.
When you are working out on a treadmill, due to the nature of the treadmill belt, you tend to bounce up and down.
If the running deck is not shock absorbing, the impact directly travels to your joints like knees.
Also since your knee is also bearing your weight, it is a double grind for it.
This can lead to knee injury.
So, always use a treadmill which has a lot of shock absorption.
Also, another thing that I’ve noticed that, many people doesn’t consider treadmill running as real running.
So, they don’t treat these runs with the same respect as they do for their outside running.
This generally means, they don’t use proper running shoes and end up with knee, ankle or other kinds of injury.
Don’t be that person. Use a proper running shoe for your treadmill runs and be safe.
I also, understand that a good running shoe will cost you a lot. So, you may want to get a multipurpose running shoe.
Here are some Best Running Shoes for Treadmill and Pavement that you can try out.
Q) How much HP should a treadmill have?
A: The HP or Horse Power of a treadmill will depend on your level of activity.
Here is a basic guide line:
For Walking: You can use a treadmill with 2.0 CHP or continuous horse power.
For Jogging: If you mostly jog, then you should a treadmill with minimum of 2.5 CHP.
For Running: You may go up-to any CHP.
Q) What is a good size treadmill for running?
A: Treadmill size is some what dependent on your height.
For any person below 6 feet, the treadmill belt should be at least 48 inches long and 16 inch wide.
However, if you are taller than 6 feet you need at least 58 inch long treadmill belt.
Also, if you are planning to run, then you should have a treadmill which has at least 10 mph speed.
Q) Do treadmills use a lot of electricity?
A: No, treadmills doesn’t use a lot of electricity.
For most treadmills, it costs less than $1 to run it for an hour.
However, if you are concerned about the consumption, please talk with you dealer before making a purchase.
Treadmills are a significant investment.
However, if you don’t exercise a bit of caution while selecting, you may end up with a dead investment.
If you are on the heavier side of the scale, then there are two things that your treadmill must-have.
Firstly, it should have good shock absorption and secondly, it should have a good load-bearing capacity.
The treadmill which raises to the top for both of these features is Sole Fitness F85 Folding Treadmill
Also, there are few other that are not far behind. Here are the top 6 best treadmill for heavy runners.
Brooks Adrenaline Vs Saucony Guide. Both of these running shoes belong to the same category, however, we like one more than the other. Among Brooks Adrenaline 21 Vs Saucony Guide 13, which one is the winner? If you want to know which one and why…then read this detailed guide of Brooks Adrenaline Vs. Saucony Guide…
Brooks Adrenaline Vs Launch. One of them is a neutral running shoe and the other one is a stability running shoe. However, based on certain differences, we think one is a tad more preferable than the other? So, between Brooks Launch 7 and Brooks Adrenaline GTS 21, which one steals the show? Find out in this detailed comparison of Brooks Launch and Brooks Adrenaline…
Concept 2 Rower Model D vs Dynamic. We compared Concept2 Model D with Concept2 Dynamic in detail and we found some differences and some similarities. However, the differences we found were enough for us to be biased about one of the models. So which model do we think is the best? Is it Concept2 Model D or Dynamic? Find out in this detailed comparison…
Brooks Adrenaline Vs Revel. One is a support running shoe and one is neutral. One provide soft comfort and the other responsiveness. We are definitely biased about one of them. Between Brooks Adrenaline GTS 21 and Brooks Revel, who stills the show. Find out in this detailed comparison of Brooks Adrenaline and Brooks Revel.
Brooks Bedlam vs Levitate. There are some major differences between these two running shoes. After doing a detailed comparison we are biased about one of them and we have picked our winner. Between Brooks Bedlam 3 and Brooks Levitate 4, which is perfect for you? Find out in this detailed comparison of Brooks Bedlam 3 vs Brooks Levitate 4.
Brooks Adrenaline Vs Transcend. Both of these running shoes belong to the same category of running shoes and are from the same manufacturer, Brooks…But one wind the race hands down and we are totally biased about it…Find out which one will you best in this detailed comparison of Brooks Adrenaline GTS 21 and Brooks Transcend 7.