Howdy all This question has no doubt been asked and answered a few times before today! BUT... Is or has anyone produced a 16T front sprocket to suit the MC19 ?? If so who is making them?? I want to (if available) try out a 16/51 combination as opposed to the 17/54. I have not found any thus far on the WWW Mainly to test the theory of less teeth at the front being beneficial for a snappier response and still maintaining the same ratio or there about. The difference in ratio between the two options is minimal @ 3.19 v 3.18 Anyway , interested to hear any feed back or even a place who could possible produce such a sprocket if they are not radially available Thanks Tony
Hey tony been looking as well, no one makes them to the best of my knowledge , what a lot of racers do is buy a 16t 428 sprocket and cut the centre out and weld a mc22 inner sprocket on , most engineering places charge $150 - $200 for the pleasure only other option is to go to a 520 chain which would negate the performance gains due to the heavier chain There was a guy on Facebook getting some made , not sure how he went
No sprocket manu's in AU? I can have a custom sprocket to my house in less than a week, as long as they know the specs to build from. If not, just have to send them the parts they don't have specs for and it will only take an extra 3-4 days (thanks to USPS being delayed)
Simon Dickson found a way around. Bit of work involved, but he makes a batch at a time. He uses the centre of an old MC22 front sprocket, and the outer of a brand new one on the size he wants, and welds them together. Of course it needs to be done by machine to make sure the sprocket remains in perfect shape and well centred. I guess if you find someone able to make 10 pieces in one go, the price per piece won't be huge.
fits models CBR250R 1988 (J) JAPAN MC19-100 CBR250R 1989 (K) JAPAN MC19-105 CBR250RR MC22 1990 (L) JAPAN CBR250RR MC22 1992 (N) JAPAN CBR250RR MC22 1994 (R) JAPAN CBR250RR MC22 1994 (R) JAPAN / TYPE 2 VT250 SPADA 1988 (J) JAPAN MC20-100 VTR250 INTERCEPTOR VTR 1989 (K) USA VTR250 INTERCEPTOR VTR 1990 (L) USA Someone has found a 14t front from JT, so they likely have 14-17t+ https://www.cbr250.com/threads/14-53-sprocket-conversion-mod-explained.252/
