27-08-12, 05:19 AM
manuel32 has a Gen 2, lads ... you're talking Gen 1 shocks. manuel, disregard what you've read so far - there's a lot of difference between the two models.
The 2006 model year Gen 2 was over-sprung on the shock making for a jarring ride for lightweight riders - the complete opposite of the Gen 1, which was under-sprung for the entire production life of that model.
The Gen 2 shock can be resprung but is not rebuildable.
Yamaha fitted a softer spring to the 2007 Gen 2 and onwards which improved things for lighter guys.
Unlike the Gen 1 which has a progressive spring as standard (weak but progressive is more accurate
) , the Gen 2 spring is single-rate.
I can't speak from experience on the Gen 2 but I can say that the Hyperpro progressive rear spring for the Gen 1 has spring rates better matched to the bike and suitable for heavier riders. If Hyperpro have been as good with their choice of progressive rates for the Gen 2, it could be a worthwhile mod.
Getting the spring rate correct for the rider's weight is the first and most important step in setting up suspension.
Rusty, to avoid further confusion between models, please start a separate thread for your question and we can all pitch with answers there.
The 2006 model year Gen 2 was over-sprung on the shock making for a jarring ride for lightweight riders - the complete opposite of the Gen 1, which was under-sprung for the entire production life of that model.
The Gen 2 shock can be resprung but is not rebuildable.
Yamaha fitted a softer spring to the 2007 Gen 2 and onwards which improved things for lighter guys.
Unlike the Gen 1 which has a progressive spring as standard (weak but progressive is more accurate
) , the Gen 2 spring is single-rate.I can't speak from experience on the Gen 2 but I can say that the Hyperpro progressive rear spring for the Gen 1 has spring rates better matched to the bike and suitable for heavier riders. If Hyperpro have been as good with their choice of progressive rates for the Gen 2, it could be a worthwhile mod.
Getting the spring rate correct for the rider's weight is the first and most important step in setting up suspension.
Rusty, to avoid further confusion between models, please start a separate thread for your question and we can all pitch with answers there.