Hendo Posted March 20, 2010 Report Share Posted March 20, 2010 As per title really, does anyone know the standard front and rear sprocket size for a ZXR600 J1/2 2001? Google isnt bringing up any definate answers. Has anyone down-geared theirs, and if so by how much? TIA Andy Link to comment Share on other sites More sharing options...
buster Posted March 20, 2010 Report Share Posted March 20, 2010 Andy, I went down 1 on the front and up two on the rear. Rear is 40 tooth standard front is 16 IIRC. If in doubt phone B&C and ask them. Link to comment Share on other sites More sharing options...
Hendo Posted March 20, 2010 Author Report Share Posted March 20, 2010 Cheers buster. Im assuming on standard gearing it'll pull around 155-160mph? I want to down gear it to around as I'm going to be using it for a European tour this year, make it a bit more usable. Any idea of what it does with that gearing buster? I dont want it screaming at a ton. Cheers Andy Link to comment Share on other sites More sharing options...
buster Posted March 21, 2010 Report Share Posted March 21, 2010 If you do it best bet is to get a speedo healer. I think top whack (theoretically) is about 168mph, with the gearing changes and speedo healer, not selecting factory error (5.5%) it works out at -10.7% error, therefore, it's now geared for a true 150mph with no speedo error. As for the changes, it peps the bike up, still not a wheelie monster but flies that little bit harder, it's not a buzzy machine anyway and the changes make it no less comfortable. No, it doesn't scream at the ton. I've found it a mod well worth doing, real road riding 168mph is not really attainable, think the most I saw on the TT course was 145mph (before changes) which is about 137mph true speed. Not been back yet, but I would imagine that the extra drive and easier to access it would see that figure improve. Link to comment Share on other sites More sharing options...
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