Yea Like I was saying thats that 20 tooth front sprocket. You can switch to the 17 with out doing any modds to the front chain adjustment grooves but the 14 tooth would wake it up with the stock rear 54 thats on the cateye right? but you have to make the adjusting grooves longer so you cat ajdust the front chainI do have a little tuning on the carb still to do after work.. It still bogs slightly at wide open throttle on acceleration....