Front sprocket Can you suggest a one tooth less front sprocket than the original front sprocket of the Yamaha YBR 125 (2008) to fit the same YBR 125 ?

Hi .... Changing the gearbox sprocket is the cheapest way to achieve what you want. What you have to watch out for is the clearance between the sprocket and the crankcases (esp'ly if chain snaps/breaks). Which country do you live in ? Any suppliers I know of are all UK based. ALL will be able to supply alternative sprockets in (almost) any tooth number you want. More expensive solution but maybe more appropriate solution, esp'ly if top speed isn't an issue, would be to increase number of teeth on the REAR sprocket, you'd have a HUGE choice of variables BUT top speed could be dramatically reduced.You would also need a longer chain depending how large you go. One on the front is equal to two/three on the rear ............ How fast due you want to accellerate ? Hi .... Changing the gearbox sprocket is the cheapest way to achieve what you want. What you have to watch out for is the clearance between the sprocket and the crankcases (esp'ly if chain snaps/breaks). Which country do you live in ? Any suppliers I know of are all UK based. ALL will be able to supply alternative sprockets in (almost) any tooth number you want. More expensive solution but maybe more appropriate solution, esp'ly if top speed isn't an issue, would be to increase number of teeth on the REAR sprocket, you'd have a HUGE choice of variables BUT top speed could be dramatically reduced.You would also need a longer chain depending how large you go. One on the front is equal to two/three on the rear ............ How fast due you want to accellerate ?