Rail (625Wh) What rear suspension shock is best for heavy riders?

scotty1959

New Member
Mar 9, 2023
7
0
East Texas
I just got a Trek Rail 5 , im 63 and got it to ride on the farm , through the woods , trails etc…. Im a big guy at 6’4” and 300, weight was due to a medical condition last yr. And its on its way down to my happy weight at 265. Who makes the best rear shock for my purpose. ?
 

Stihldog

Handheld Power Tool
Subscriber
Jun 10, 2020
3,671
5,231
Coquitlam, BC
I haven’t got one yet but my next shock will be the Ohlins TTX1 air shock. They’re expensive but I didn’t really know how they compare to other shocks. More research I guess.
There are a few options for your size and terrain. I have a medium Rail 9.7
 

JP-NZ

E*POWAH Elite
Feb 17, 2022
1,211
932
Christchurch - New Zealand
I just got a Trek Rail 5 , im 63 and got it to ride on the farm , through the woods , trails etc…. Im a big guy at 6’4” and 300, weight was due to a medical condition last yr. And its on its way down to my happy weight at 265. Who makes the best rear shock for my purpose. ?
I'd be very weary of riding it currently.. from the Trek website.

This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

As for best shocks for heavier riders a coil shock with 700-800 spring. Something like a 230x57.5 or 230x60 Marzocchi Bomber CR is good dollar to performance ratio
 

Stihldog

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Jun 10, 2020
3,671
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Coquitlam, BC
You’re packing a lot of weight. I’d be concerned with the wheels. 28 spoke might not be enough. I went to a 32 spoke, decent wheel and a hub with a higher POE. Most of the Rail’s around me have increased their spokes to 32. Some guys were breaking spokes every week until they upgraded. (Several Rails on my street).

I’m not happy with the POE on my HT though so I’ll probably change out the wheel, spoke count and hub on that bike.
 

Stihldog

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Jun 10, 2020
3,671
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Coquitlam, BC
I know a few guys who are 265-300 who ride Rail 5’s. They don’t seem to be concerned about the Rail 5. Just get the sag settings right and replace stuff as they break. Or upgrade to “shinier” things like I do🙄.
I’m not as worried about suspension as you but new wheels and hubs were a noticeable difference for me. With my air settings I seldom bottom out, but I did taco a rear wheel once.
 

vertrkr

Member
Nov 19, 2021
32
62
California
I'm 6'4" 280lbs and I've had my Rail 5 for 2 years now at 1,000 miles. I don't jump or do drops more than a foot or so. I've tried 3 shocks and here's what I've learned.

Nothing off the shelf will give you a smooth ride if you're over 200lbs. What ever shock you get you'll need to get it re-valved by a suspension tuner.

That said, I rode the first year on all the stock equipment. It worked fine and I had fun. I then put on a Fox Float X2, had to pump it to max pressure at 300 psi. It really didn't feel any different than the stock RockShox.

Recently I decided to see if I could get a better ride and talked with a suspension tuner (Mike at Full Flow Suspension). He set me up with a re-valved Ohlins TTX22m.2 (708 lb spring) rear shock and '23 Zeb Ultimate with a Smashpot coil conversion (60lb spring) fork. Holy crap, that made it a whole new bike and experience. It's not cheap but definitely worth it. That setup cost me about $2,700.

I also upgraded my wheels with some Industry Nine carbon wheel sets.

Bottom line is you need to talk to a suspension tuner. Talk to your bike shop and see if they have any local recommendations. Otherwise you can find some online and just get the shocks shipped to you.
 
Last edited:

Ark

Active member
Mar 8, 2023
464
391
Newcastle Upon Tyne
This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
63 year old guy won't be sending it so I'm sure it's fine.

I'd expect the 136kg total weight limit takes into account jumping the bike and the linkages taking some big whacks as bike falls back to earth
 

scotty1959

New Member
Mar 9, 2023
7
0
East Texas
Just joy riding some easy trails, no problems. The bike store aired the shock up for me , but I will still get a custom made one for my assurance, thanks to all who helped
 

BigMark

E*POWAH Master
Feb 10, 2020
90
500
91737
I had no problems with the stock rockshock pumped all the way up, I'm not saying it was ideal...Got about 8500 miles out of it riding mostly medium trails. In my opinion what you should be most concerned about is the stock brakes, on a steep hill my brakes would get super hot and lose power. I went with Shimano Icetec R86 203 mm rotors and Icetec pads, Organic compound in the front to minimize squeal. I lost about 30 pounds the first year and the exercise cured my meniscus pain. Good luck and have fun!
Rail7Hoard.jpg
 

Doug85

New Member
Feb 8, 2024
55
13
Scotland
I just got a Trek Rail 5. I’m 63 and got it to ride on the farm, through the woods, trails, etc. I’m a big guy at 6’4” and 300 lbs. The weight was due to a medical condition last year, and it’s on its way down to my happy weight of 265 lbs. Who makes the best rear shock for my purpose?

Hi, I am 300 lbs. I just started out. I got a Cube Stereo Action Team eMTB with the Float X on the rear (160 mm) and 170 mm 38 Fox up front. It’s more than capable for your weight! Mine came with the largest 0.9 spacer in it, so the psi is maxed at 265 psi, and it’s too hard with that spacer and that psi but its what is needed for the sag! I know alot ofnuse over 300lbs are sticking to 40% sag in the rear amd working out just fine so something to think about as its going to be a hard ride at 30%. I am not using all the travel in the 160 mm Float X. So, I’ve done some research into this shock. I know a guy who tests them day by day. He told me the sweet spot token volume spacer is a 0.6 for the Float X, and I can add the blue 0.1 to up it to 0.7 if it’s just a bit soft, so I will be trying this out this week! I know Öhlins would be an absolute waste of money for our weight. A couple of people I know are 170 lbs and 230 lbs and can’t get a spring rate to suit them. They’re all too soft, at the highest lbs spring, and the RockShox springs don’t work for some it'll cost abit to find the right spring it'll be the saddle all over again job haha but I know this is a year old let me know how you have got on I'd be very interesting to heard happy riding
 

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