Suspension Spring Rates
Posted 22 February 2012 - 03:13 AM
Posted 22 February 2012 - 09:12 AM
There are inexpensive ways to do this, via fluid change, which are helpful and much more costly (and effective) options. I would have a look at what Pro Cycle offers.
Edited by BDM, 22 February 2012 - 10:04 PM.
Posted 22 February 2012 - 05:45 PM
The goal valve in the shock made a big difference.
Posted 22 February 2012 - 06:39 PM
I use a 0.47 front and an 8.0 rear and am about the same weight and carry the same load as you.
For me this works well and an 8.3 rear will be about the same.
Do not believe the race tech calculator as suggested above it will be way too heavy.
If you want other advice contact Procycle US.
Posted 23 February 2012 - 09:29 AM
I just recently bought a complete front end off of a 2001 RM 250 - USD Forks, triples, caliper and front wheel. It cost me $300.00 for everything, and is a direct bolt in. The forks just got back from having an RG3 rebuild and revalve, with new .48 kg/mm springs. That wasn't cheap! I have six weeks on crutches with a cast on my foot, and then I can get everything buttoned-up and see how she rides!
Posted 23 February 2012 - 06:35 PM
I found an old Ohlins that fits the DR (they no longer make one for it). It's fantastic.
Various companies make shocks for the DR650 or you can go with Cogent Dynamics, who rebuild your stock item for about $700 (includes spring) Reports are very good.
You can do LOTS of fine tuning with the front forks by varying the pre-load, oil weight and oil level. If you're patient you can really get it nice doing this. You can also have the front end re-valved but an expert or do it yourself. Emulators are nice too.
With a big load on the DR650 off road you may need a fork brace to help settle the front. Really helps in rocks, ruts and sand.
So springs are a good start ... but much more to be done.
Edited by 54321, 23 February 2012 - 06:37 PM.