re changing sprocket ratios honda cb in article c k bm btb ms uky edu cbrooks ms uky edu clayton brooks writes do any honda gurus know if i can replace the the front sprocket on my honda cb k with a slightly larger one i see this as being preferable to reducing the size of the rear one that s a twin cam right there s a steel guard right next to the sprocket to keep a broken chain from punching a hole in the engine cases and it s needed there s probably not enough room to fit a bigger sprocket i d be inclined to take two teeth off the rear for a ratio change rather than adding one to the front for about if you raise the overall gear ratio too much you ll impair the bike s rideability because the gears will be far enough apart that there will be only one gear that provides adequate response at any given speed honda s don t have the widest of power bands chuck karish karish mindcraft com x karish pangea stanford edu
