K2 / Proflex Riders Group

General => Tech Forum => Topic started by: sid on January 10, 2009, 10:03:07 am

Title: R.D.S elastomers
Post by: sid on January 10, 2009, 10:03:07 am

Thankyou RDS  for the elastomers , I have both hard and soft sets now , I will keep everyone posted to how I get on giving them a good breaking in over the next few weeks . Cheers.

(http://i404.photobucket.com/albums/pp126/onechip/brakebooster.jpg)


P.s I have also now fited the brake boosters to stop the flex in the frame , they certainly help.

Title: Re: R.D.S elastomers
Post by: rapiddescent on January 13, 2009, 04:51:58 am

if the 656R is too hard then get in touch and I'll send you some softer ones to try.   The geometry looks less than 2.8:1 (that the 656R is designed for) so they may take some pretty hard hits and a bit of riding to bed in.  An MCUV1 will fit this shock but is very much softer.  The 656RS is a mixture of Vector1 and 656R elastomers.

if anyone in the future wants a non-standard bunch of elastomers then msg me because I can do a good deal - I don't put them up for sale generally because I'm worried that non-tech riders (majority of customers) will cock it up.   idriders proflex folks generally know their stuff so I'm happy to help

Title: Re: R.D.S elastomers
Post by: sid on January 13, 2009, 01:24:21 pm

Hi  R.D.S

I have this set up aswell but thought it maybe a bit too soft , are there more alternatives to these 2 set ups ? Will see how I get on with the other one first though . BTW Is it best to get a few road miles through them with some weight on the saddle or just go off road ?

(http://i404.photobucket.com/albums/pp126/onechip/Pictures110391164.jpg)

Cheers . Still wish I could put a spring though  ???

Title: Re: R.D.S elastomers
Post by: rapiddescent on January 15, 2009, 05:55:54 am

it's just me and my loft workshop - not really a corporation or anything!

+ to bed the elastomers in - do some off road riding and get the shock working with frequent compression. 
+ springs: the problem is that a coil spring will rebound with an equal and opposite force - sometimes known as pogo'ing.  Steel springs are so much more aggressive than elastomers and would literally bounce the back wheel off the ground and in some cases could even send the rider of the handlebars.

this is why spring based shocks have an oil resevoir that uses a piston with a series of holes and flaps so that a spring can compress fast and bound back slowly.  This is the principle behind damping.  Just the same as a car shock absorber.

callum