JT Sprockets JTF1539.15 15T Steel Front Sprocket , black

If you have a versys 300 x like me, we got this to make the gearing taller in the simplest way. The front sprocket 15t fits and is easier than removing the rear sprocket from the wheel and going down teeth on the back. The front sprocket exchange requires some specific tools, so do your research first to save some grief.This review is for 3 stars because while yes it fits and has 15 teeth that work fine with the stock chain, the glaring difference is that the Kawasaki stock 14t front sprocket is rubberized, while this one is not. This results in chain whine, or whirring. If you pull in the clutch above 50mph, the chian noise is louder than the engine. I would have paid more for a rubberized 15t sprocket, as the noise increase is pretty notable at higher speeds. I'll update if the chian noise decreases with break-in, or if any other variables like alignment/slack/lube change this- but I've checked all of these and the chain is in mint condition.JT, please make a rubberized/dampened 15t sprocket.

Bought the sprocket for my 2017 Versys-X 300. Delivery was super fast and fitment was easy:Ride for 15 mins to warm up the engine. Remove plastic sprocket cover. Flatten safety washer to access the retaining nut. Loosen the retaining nut. Loosen the rear axle nut and adjusters. Move the wheel forward to put slack in the chain. Remove the chain from the rear sprocket then pull the front sprocket off with the chain still attached. Put the old sprocket aside and fit the new one with some oil/grease as instructed. Replace the washer and nut and tighten lightly until they are seated properly. Replace the chain onto the rear sprocket. Adjust the rear wheel until the chain slack is within spec as indicated on the swingarm. Tighten the rear wheel to spec using a torque wrench. Lock the rear brake and tighten the sprocket nut to spec using the torque wrench.Replace the plastic cover.1 tooth more is approx a 7 % decrease in RPM and doesn't affect any of the bike electronic functions.

Worked perfectly in versys x 300. 15t lowered the rpm just enuff for better highway performance while still maintaining good off road control.

Install went smoothly on my 2019 versys x 300. Fits perfect. It does make more noise than the factory sprocket but for the price I'm not complaining. I generally only hear it when coming to a stop. Much better gearing for any situation. First gear is actually usable now as is 5th. Reduced my rpms by approximately 500. Bike feels much better at all speeds while still having plenty of power.

2019 Kawasaki Versys x300. Fits, works. I bit chain noise compared to stock rubber dampened sprocket. Lowered RPM approx. 450 at given speeds. Combined with a 43 rear I got about 900 rpm less at given speeds.

The Sprocket is for a 2008+ ninja 250R. Sprocket arrived on time and was packaged well. The item was as described and was not for the earlier model EX250's. This is a great quality product and I will use the brand again. I would definitly purchase from this seller again.I highly recommend this sprocket as an upgrade to the OEM 14T that the bike comes eqquiped with. It brings the revs down a little at highway speeds. Sprockets are easy to install on this bike and there is no chain modification needed for this 15T sprocket.

Good product, not a big difference noticed but a slight bit better rpm reduction, Good price, no instructions to tell you which way to face the rim or spaced edge. Faced the rim/logo out like you would suspect, seems to be ok, at least for now, have been told i'm right and wrong, who knows?

Part was ordered for a repair bike to replace the original sprocket that was toast. Installed easily with no hassle. Shipped and arrived fast than expected. Paired with the JT Sprocket JTA486.45 45T Aluminum Rear Sprocket for this application and went on with no hassles. Would buy again.