Trek Rail with Fox DHX2 coil

[kenaiok]

300lbs including the bike? That's how I'm running a 650lbs spring (Rail 5 XL) and think it's pretty spot on.

It's another shock (Marzocchi Bomber CR) though.

Do you mind posting a pic of your Bomber CR? I’ve got an XL Rail 7 and really interested in getting the Bomber CR for it

I might have to get a Z1 coil for the front so I’ll be fully back in 1997!

 

[Dave_B]

Does the RS Super Deluxe Coil fit the Rail (size large)? not sure if the piggy back will hit the frame at full compression?

It comes in standard fitment (none trunnion), but I guess bushings can be purchased?

Super Deluxe Ultimate Coil RC2T - Standard

Performance to match the most demanding riders out there. The ground up, all-new Super Deluxe Coil Ultimate is a work of art with no feature spared.

www.tftuned.com

 

[Dave_B]

are progressive springs needed for the Rail?

 

[Dave_B]

My spring rate is 500
So if I pick a progressive spring, do I pick one that starts at 500 and progresses up to 610? Rather than a 450 to 550 progressive rate spring?

 

[JP-NZ]

Does the RS Super Deluxe Coil fit the Rail (size large)? not sure if the piggy back will hit the frame at full compression?

It comes in standard fitment (none trunnion), but I guess bushings can be purchased?

Super Deluxe Ultimate Coil RC2T - Standard

Performance to match the most demanding riders out there. The ground up, all-new Super Deluxe Coil Ultimate is a work of art with no feature spared.

www.tftuned.com

Dave I would be very interested to know this because surely the super deluxe piggy back is the same size and the MY22+ Rails that have the different Geo sure look like they could fit larger piggy backs compared to the older rails...

 

[Bomble]

are progressive springs needed for the Rail?

I thought I’d try a progressive spring on my Rail, phoned Tftuned to buy one and they talked me out of it

 

[andygua]

I thought I’d try a progressive spring on my Rail, phoned Tftuned to buy one and they talked me out of it

Just out of curiosity, why did they suggest not to? I'm really happy with my SLS linear spring, so just curious

 

[Bomble]

Just out of curiosity, why did they suggest not to? I'm really happy with my SLS linear spring, so just curious

To be honest I can’t really remember I remember feeling convinced and impressed they stopped me buying something from them.

 

[Dave_B]

Fox vs Ohlins

pro’s cons of either?

I can buy a new DHX2 with spring for £750, which I think is pretty good.

 

[BobMtnBkr]

Dixie600mhz,

Agree with your assessment of the ’21 ZEB Select + found on ’21 TREK Rail 9.8XT.

Believe the ’21 Select + comes with the charger 2.1 RC (only low speed compression) and the ’21 Ultimate comes with charger 2.1 RC2 damper. Guessing the 2.1 RC2 (Ultimate) is a better damper, but not sure by how much. And now Charger3 RC2 is out for ’23. Don’t know how much better that one works either.

Just added a Vorsprung Luftcappe to the Debonair air spring side. Noticeably better, but still not good enough. Now looking at coil kits. But will save that discussion for another thread so I don’t hijack this shock thread.

Speaking of shocks – just read this thread twice and still couldn’t determine if a ‘21/’22 Fox DHX2 is compatible with my 2021 TREK Rail 9.8XT (Medium frame). Maybe 230 x 60mm stroke?

I’m thinking spring front and back is best for me.

Bob

 

[kenaiok]

Marzocchi Bomber CR & Z1 Coil. There’s been some talk about whether the Bomber CR coil fits the Rail

I just made the conversion & got the Z1 Coil as well….it fits & there are no issues w/ it hitting the DT at full compression on a Size XL…it’s really close but doesn’t hit. I’m 220lbs and did a full WWE jumping from the ropes move on it w/o the coil installed and it didn’t hit

4 rides on it in the real world so far and no issues w/ it hitting the DT

Huge upgrade to how the bike (2022 Rail 7) feels on & handles the terrain compared to the RS Deluxe Select + and Domain.

So pumped to be riding like it’s 1997!

 

[Black8917]

Just installed a super delux ultimate coil 230x65 on my 2021 9.8 with a SAR 600lb SAR spring.

It feels a little stiff. I need to ride more. I’m coming off a 2021 dhx2 with the same spring it felt softer.

Anyone try the new rockshox ultimate coil yet? Btw it clears fine on my large.

 

[albert1060]

Jade X at 60mm stroke fits a Medium Rail without hitting the down tube.

Hello. Did you tried the bike with more stroke? 62.5 or 65?
I have a 2020 Medium Carbon frame and ordered a DVO Jade X with 65 stroke. I hope it won't hit the real triangle at full compression. I can't really find info about Medium and Carbon frame.

 

[Mlopez]

I have a jade x coil in 230x62.5 and it doesn't hit the size M frame.

 

[albert1060]

I have a jade x coil in 230x62.5 and it doesn't hit the size M frame.

Carbon or alu?

 

[irie]

Carbon or alu?

Thread 'steering bearings' Rail (625Wh) - steering bearings

 

[Unobtanium]

Yes...these are the FOX part numbers for the traditional eyelet type shock mounts that fit the Rail.
If your Rail originally came with the trunnion type shock, you’ll also need these items from Trek:
• upper axle - 599898
• lower axle - 599900

View attachment 53752

Does anyone know where I can get no. 24 from w529969 without paying £11.99 for one? Like WTF?

 

[JP-NZ]

Try the RRP on the upper or lower shock axle for over $100 each here in NZ

 

[Unobtanium]

Try the RRP on the upper or lower shock axle for over $100 each here in NZ

It seems these pivot washers are made from aluminim so i bought some the same size off ebay for 20% of the trek price.

 

[Ultimate Bobster]

Hi All, i have just bought a Gen 4 Trek rail in a Medium ( 9.8). I have ridden it a number of times and the standard rear shock does not seem supple enough. I am looking for some help on what coils should fit and what stroke i should go for ? What would have clearance. I have ridden a Ext storia v3 in the past. I am a heavy guy at the moment , 100kg plus so some thoughts would be welcome on what people think might be appropiate.

 

[JP-NZ]

Hi All, i have just bought a Gen 4 Trek rail in a Medium ( 9.8). I have ridden it a number of times and the standard rear shock does not seem supple enough. I am looking for some help on what coils should fit and what stroke i should go for ? What would have clearance. I have ridden a Ext storia v3 in the past. I am a heavy guy at the moment , 100kg plus so some thoughts would be welcome on what people think might be appropiate.

Would pay you to read this thread from page 1. All the details you need, once you decide stroke then use tf tuned spring calculator for your weight

 

[arTNC]

Hi All, i have just bought a Gen 4 Trek rail in a Medium ( 9.8). I have ridden it a number of times and the standard rear shock does not seem supple enough. I am looking for some help on what coils should fit and what stroke i should go for ? What would have clearance. I have ridden a Ext storia v3 in the past. I am a heavy guy at the moment , 100kg plus so some thoughts would be welcome on what people think might be appropiate.

That thread that JP-NZ suggested is one I also recommend. It's just about covers all you can want about aftermarket shocks and especially coil shocks. I'm definitely a coil suspension rider. I've had a couple of good piggyback rear air shocks over time, but I still haven't found anything that equaled the best performance of my best coil shocks.

For my Gen 2 Rail 7, I selected a Fox DH-X2 coil shock in a 230 X 60 size...230 X 57.5 being stock. Some Rails can run longer strokes, but I wanted to stay close to the OEM stroke. It works well with my Marzocchi 170mm coil fork. I'm 205 pounds and I run a 550 spring. At your weight of about 220 pounds, I know Fox at least has springs that go high enough to accommodate you.