March 4, 201610 yr Hi Ive covered rim size on a previous post, but thought I would ask the remaing (at the moment) questions in one go 1 - Sprocket size Its a 4 speed engine - unsure of any internal gearing changes. What the best combination of sprocket sizes ? Also- chain, 428 ? 2 - Wheel offet Im about to get new rims built onto bantam hubs Rear (using a widened swinging arm and engine offset 8mm) - I think needs no offset ? Front - I think 6mm offset to brake side ? 3 - Chain tensioner Any advice on best type ? may think of more ! cheers John
March 4, 201610 yr Hi Ive covered rim size on a previous post, but thought I would ask the remaing (at the moment) questions in one go 1 - Sprocket size Its a 4 speed engine - unsure of any internal gearing changes. What the best combination of sprocket sizes ? Also- chain, 428 ? 2 - Wheel offet Im about to get new rims built onto bantam hubs Rear (using a widened swinging arm and engine offset 8mm) - I think needs no offset ? Front - I think 6mm offset to brake side ? 3 - Chain tensioner Any advice on best type ? may think of more ! cheers John Have you changed the crankshaft sprocket ? you should. 12 tooth crankshaft. 12 tooth gearbox. 60 tooth rear wheel on a 428 chain but some use 420 to help with clearance. I used Whitton hubs which are 17mm offset from brake face front and 34mm from inner sprocket face rear but i dont know if bantam would be same. Chain tensioner depends on where you mount it any aftermarket universal one should do.
March 8, 201610 yr Hi John Ref chain tensioner get one from Jim Pickering (Drayton), it fits at lower rear engine mounting point (actually bracket to frame bolt), it uses a longer bolt has a roller instead of a pad and is well out of the way, they are made to fit Drayton frames but to fit to my modified Bantam frame I just used a thinner nut between roller and bracket and removed a small amount from allen bolt head one of those jobs where thinking time is more than doing time. I originally used a universal one but it got continually bent or pad filled with mud and stones.
March 11, 201610 yr Author Cheers dave do you have a contact number ?ive searched on internet but cant find cheers john
March 12, 201610 yr Is there a Drayton website? I can't find one so thought I'd ask. Or, other than at shows and events, is there anywhere his products can be viewed?
March 13, 201610 yr Is there a Drayton website? I can't find one so thought I'd ask. Or, other than at shows and events, is there anywhere his products can be viewed? You cant move for them at trials round here
May 25, 201610 yr Is there a Drayton website? I can't find one so thought I'd ask. Or, other than at shows and events, is there anywhere his products can be viewed?Just wondering did you buy a Drayton in the end?
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