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Help MC 19 Front sprocket options?

Discussion in 'Honda 250cc In-line 4's' started by Tony Wilkinson, Apr 6, 2021.

  1. Tony Wilkinson

    Tony Wilkinson Wilko Premium Member

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    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
     
  2. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    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

    4BD5CAA9-D8FD-4381-86AD-08D69D5625CC.png 766B0DC1-0ACF-4D94-A3CD-9BDEC9F77043.png
     
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  3. Tony Wilkinson

    Tony Wilkinson Wilko Premium Member

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    Thanks for the reply and info kiffsta !!
     
  4. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    I made one for my drag bike using the cbr centre and the outer teeth from a postie bike sprocket.
     
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  5. thebeefsalad

    thebeefsalad Well-Known Member Premium Member

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    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)
     
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  6. XCite Bikes

    XCite Bikes Parts and Accessories Staff Member 250cc Vendor Contributing Member

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    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.
     
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