[brownedoff]

great just bought a bike 2007 crf250r the rear suspension seems a bit weird im 13 stone 185 pounds the rear sping that is fitted says ktech 64/66-270-45 and is yellow is this to small or big for me or ok havent done ride sag yet but will do on weekend ... does anyone know what the numbers mean ? and what side rider its for and what spring i would need many thanks crf ers

[JimDirt]

I just searched their site and could not find that part number but i found similar part numbers , it could be a discontinued item , or a custom rate , you might want to give them a call or Email them to find the rate of that spring to make sure its correct for your weight

And you definitely need to check the sag , that will tell you if its the correct rate or not , then go from there , but you need to do that first to see where your at

http://www.k-tech.uk.com/

http://www.k-tech.uk.com/contact.php