Quadra springs

[michael franks]

Hoping for some advice on whether I can replace the elastomers in my Quadra 21 forks with 21R springs.

Thanks.

 

[LTS Biker]

That should works, as far as I know, they are practically the same forks.

 

[drystonepaul]

Just bear in mind though that, unlike Rock Shox Judys, Quadras don't have a damping cartridge and rely on solely on the elastomers for any damping.

You can run a coil spring in one leg and an elastomer stack in the other for improved suspension action while retaining some of the damping.

 

[FluffyChicken]

Probably, just check the length will fit. Look in the service manual/cataloge in the archive or maybe on LTS's site. I forget where it is.

Technically you can run springs in a MAG21 and still have damping.
I believe 7" speedsprings would work in a mag21, though with modification and no specific damping.

So cannot see why somthing similar wouldn't fit in the early Quadra's

I think the Quadra21R used the JUDY Jax MCU setup ?
I think you're spring will need to be ~6" long.

I think the Friction ring if it has it is your damper ring in the Quadra's

 

[drystonepaul]

I think the Quadra21R used the JUDY Jax MCU setup ?

Yes that's right. The 21R had a mixed stack of five or six short red (soft) and blue (hard) elastomers with the plastic connectors in each leg. The other Quadras had single long elastomers in each leg.

I don't think there was a friction ring in the 21R's when I had mine back in 1995 though...?

 

[michael franks]

Thanks to everyone for the stack of information. My forks do indeed have one single long (blue) elastomer in each leg. They are on a Hoo Koo E Koo - '95 I think - which I rescued six years ago. It wasn't until last September when I joined Retrobike that I found out what make they were let alone the model.

You've really helped me, thanks again guys.

 

[FluffyChicken]

service manual is here http://retrobike.co.uk/gallery2/main.ph ... emId=58170

 

[DegsUk]

Just stripped and cleaned my set of Quadra 21Rs , and ordered a new set of elastomers, not cheap but they will do the job

http://www.suspensionforkparts.net/esho ... oductId=88

 

[LTS Biker]

Probably, just check the length will fit. Look in the service manual/cataloge in the archive or maybe on LTS's site. I forget where it is.

http://members.home.nl/children-of-the-korn/RockShoxService.htm