Forum menu
rear shock top hat ...
 

[Closed] rear shock top hat reducers

Full Member
Joined: 17 years ago
Posts: 21646
Topic starter   [#2517244]

Are the rockshox and fox eyelet with and diameters the same? Just need to know if we can swap a fox shock onto a rockshox equipped one to test it out. E2e and stroke length are the same, it's just mounting them. Don't have both bikes together right now.

Cheers.



   
Full Member
Joined: 17 years ago
Posts: 6853
 

Fox diameter is 1/2"
RS was 10mm, then 1/2", then 12mm. Not sure what they are now though. If boths shocks have bushes in, it's only the width that matters. However the bolts can be 6mm or 8mm (FOX). Not really helped has it?
What are the frames?



   
Full Member
Joined: 17 years ago
Posts: 21646
Topic starter  

Got a friend with a monarch on a Kona. Just wondering if we can try the fox from a stumpjumper to see if they like it any better.



   
Full Member
Joined: 17 years ago
Posts: 21646
Topic starter  

Shameless bump!

Anyone else know?



   
 Tim
Free Member
Joined: 17 years ago
Posts: 1092
 

Ar the frames the same travel and are the shocks the same stroke? If not its a fairly meaningless test, and even so the leverate rates may be different betwene the frames so the damping will eb setup differently 🙂

i'd stick a rule across it, or some verniers if you want to be accurate 🙂



   
Full Member
Joined: 17 years ago
Posts: 21646
Topic starter  

Same E2e, stroke and travel. That's why we thought we'd give them a go. Just wondering if they'll mount to the frames.



   
Free Member
Joined: 17 years ago
Posts: 1029
 

No you cant. Rockshox are 12mm, Fox are 12.7mm. Just put a Fox shock on a bike that had a Rockshox on, different size so I had to go shopping. TFTuned sell the kits but dont do top hats only the heavy duty ones and they are £15 each.



   
Free Member
Joined: 17 years ago
Posts: 1029
 

Actually on second thoughts it may be possible, it depends on the year of manufacture of the Rockshox shock, RockShox '03-'04 and '08 (inc. Vivid and Monarch), are 12.7mm which is the same as Fox shocks, RockShox '05-'07, DNM rear shocks are 12mm.
This is according to the TFTuned website, hope it helps.



   
Free Member
Joined: 17 years ago
Posts: 0
 

Monarchs are 12.7mm 1/2"



   
Full Member
Joined: 17 years ago
Posts: 21646
Topic starter  

Cheers guys. I assume you mean diameter. Does and one know the width of the eyelets?



   
Free Member
Joined: 17 years ago
Posts: 0
 

The du bushes are 1/2" ID by 1/2" wide on both.