hey guys, been a long time, cause I've been living in Nicaragua...finally got a real bike down here, picked up a wr250X (2011), but the rear shock is a goner and it's not cool when riding in flip-flops all the time on fire codes and rutted out trails. It's impossible to get any Yamaha parts...

How to calculate the spring rate needed for a particular rider weight? Lets put our brains together and build a proper thread with correct information. Just like in math class you must prove your answer by showing all your calculations. I found the following list online "this list of springs...

I've exhausted the search button and can't find a definitive answer.. so here's my issue for my 2009 DRZ400SM... I'm about 205 pounds with full gear on and this rear shock is ridiculous. Bottoming out on everything. I know people replace them with stiffer ones, so is it as easy as getting a new...

For Sale: -All parts shipping additional, insurance for full purchase value required. Pickup available Atlanta area, north of 285 perimeter Husqvarna Husky Supermoto Rear Wheels All used, some scratches but good overall. Fits SMR450 SMR510 SMR610 SMR570 TE conversions, etc Excel 5.00x17 rim...

Previous owner of my smr 510 was a really big guy. I only weigh 150. When I lived in upstate NY and raced mx, we got our suspension done by ProAction. Can anyone recommend a place around Philly? I plan on track days and racing this spring/summer.