It's what the bike came with when I bought it. Are you using a 428 chain?
And am I right in thinking that the equivalent gear ratios, ie 12/48 for example would be taller if using a 520 chain setup, given that the spaces between each tooth would be larger?
Thanks for the replies. I have done a bit of research and now know that the conrods are different and the stroke is longer, which would indicate that the crankshaft is different also, although from what I've been told the gearboxes are the same. So I suppose it is possible but would involve a lot of work.
Hi, I've spoken to the Beta importers here in the UK and it's not a cost worthy option.
Yes it can be done but you're looking at almost a complete engine, piston, cylinder, con rod, crank, etc. so you'd be better off buying a new bike. Converting a 250 to a 300 is much easier as they basically are the same apart from the cylinder and piston from what I can gather.
So I'll either soften my 250 or save my pennies and buy a new 200.
Hi, has anyone converted a 250 Evo down to a 200? Is it just a case of changing the barrel and the piston? I've noticed that the stroke on the 200, 250 and the 300 is the same at 60.5mm, which would suggest that they use the same crank. I know the carb is different, but, I don't think that this would be an issue. The bike in question is a 2012 model.
Thanks scorpa250, yours is too by the way. Is yours a 175 or have you gone down the 200 route? I've heard it a lot of bucks for not much gain. Have you ridden it yet and if so what do you think of it?
Hi, sorry to hi-jack the thread but here is a picture of my Whitehawk. It has a TY mono front end. Ian Pederby built up most of this bike for me last year and it is a credit to his workmanship!
I can't comment on the twin leading shoe set up, but all I can say is that the TY mono front brake is more than adequate for my limited ability. I also like the fact that you don't see too many around. Mine is still a 175 by the way, all be it with a few mods here and there, porting, etc.
You dont need a Whitehawk or a Maj the way you were riding on sunday ! Finishing on a single dab like that... I think a few Golden Valley feathers will be ruffled.
Ha ha, thanks Jon but I shall wait to see the official results. Knowing me
I've probably run over a marker or gone the wrong way....
I think I prefer the Whitehawk over the Maj unless we're talking about
Fanatic 200 pro gearing
in Fantic
Posted
Yup, I agree that a good quality 428 chain would be ok, but as the bike came with a 520 set up, and is almost new I'm reluctant to change it.
Furse, 13/53 that's quite tall gearing, I take it the bike must handle it ok seeing as you want to go even taller?