Post by: Ramplin on March 17, 2022, 10:13:26 PM
Thanks
Post by: Bryanj on March 18, 2022, 12:40:37 AM
Post by: SteveD CB500K0 on March 18, 2022, 06:23:02 AM
Welcome to the forum. Tell us a bit about your bike.
Well, that’s 19 more words than Bryan already
Sent from my iPhone using Tapatalk
Post by: Ramplin on March 18, 2022, 07:52:56 AM
Love me or hate me for this, but it's a race bike and is currently running a 520 sprocket and chain set up and I would like to replace them but struggling to find any in stock.
Picture added for reference
Post by: Sesman on March 18, 2022, 08:00:54 AM
Post by: Bryanj on March 18, 2022, 08:03:48 AM
As to where from now thats a totally different question, perhaps a smaller Honda has the same front fitting and as a race bike i suspect the rear is a different tooth count to standard so thats probably a special order item, i would suggest asking your local dealer if he has a catalogue with different sprockets in.
And yes Steve, always nights, its the numpty security idiots that drive me crazy!
Post by: Sesman on March 18, 2022, 08:08:22 AM
Post by: Ramplin on March 18, 2022, 08:22:58 AM
Cheers
Post by: Trigger on March 18, 2022, 08:25:39 AM
Post by: Ramplin on March 18, 2022, 08:50:43 AM
You need to contact >>> http://www.d-mengineering.co.uk/en/
I have already no stock and not sure on lead time 😕
Post by: Laverda Dave on March 18, 2022, 09:58:14 AM
Good luck with the sprockets, would Renthal or Talon be able to make them, a lot of speedway riders use them? Motorcycle Race Parts UK is another potential supplier.
Where's the hillclimb?
Post by: K2-K6 on March 18, 2022, 12:42:54 PM
[attachimg=1]
Listed for CRs 250 450 480 etc. Possibly a route to research.
Post by: Ramplin on March 18, 2022, 12:44:20 PM
Lovely bike. I like the front brake, you don't one of those spare do you that you wish to sell, I've been trying to find one for years!
Good luck with the sprockets, would Renthal or Talon be able to make them, a lot of speedway riders use them? Motorcycle Race Parts UK is another potential supplier.
Where's the hillclimb?
Unfortunately that is the only front-wheel I have, I may know a chap in Holland who might have one but they are pricey.
I can get a blank made but it's two weeks lead time and the sprint is in two weeks. Taking place in Preston on the 3rd of April
Post by: Ramplin on March 18, 2022, 12:47:18 PM
Unsure of the size, but the 80's CR moto-X bikes used same type of fixing and may share common dimensions in this size.
(Attachment Link)
Listed for CRs 250 450 480 etc. Possibly a route to research.
Do you happen to know the diameter of the output shaft? It would need to be 25mm, it's mainly the rear I am struggling to find in 520 as I could machine a 530 front down to 520 pitch
Post by: Bryanj on March 18, 2022, 12:53:58 PM
Post by: K2-K6 on March 18, 2022, 12:54:54 PM
Unsure of the size, but the 80's CR moto-X bikes used same type of fixing and may share common dimensions in this size.
(Attachment Link)
Listed for CRs 250 450 480 etc. Possibly a route to research.
Do you happen to know the diameter of the output shaft? It would need to be 25mm, it's mainly the rear I am struggling to find in 520 as I could machine a 530 front down to 520 pitch
Unfortunately I don't, raced a red rocket CR 250 years ago and remember thinking how neat that sprocket fixing was, and matching the road bikes in concept. Nothing I've got to measure currently (thought I had an old front sprocket laying around) so no immediate help to you.
Someone in historic moto-X must have information though.
Very nice bike by the way.