1993 cbr 600 tyre help

[joe.]

hi there, im looking for a set of race scrubs to replace the knackered 207's on my cbr. A lot of the tyres ive looked at have been 120/70/17 and 170/70/17 instead of the standard 12/60/17, and rear 160/60/17 would this be ok to fit to my bike. And would it be worthwhile to stick a 170 on the back?
any help would be appreciated
cheers
Joe
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current: firestorm
previous:gsxr 750, rsv, fz6, xj6, firestorm, bandit 600/825, zx7r, gpz500, gs500, zzr600, xj600, zzr600, cbr 600, xj600, cb500, Kawasaki Gpz500, Aprilia rs125, Suzuki gs 125, Kawasaki gpz 500, Suzuki gt 185, Yamaha dtr 125, Yamaha ybr 125, cagiva mito, Yamaha dtr 125, Honda ns 125, Honda cb 125t, derbi senda, gilera dna, peugoet speedfight, gilera runner, mbk mach G, gilera gsm, derbi gpr, peugeot speedfight, italjet formula, derbi predator. since january 2009.

[Noxious89123]

I would try and stick to standard sizes personally, obviously that depends on being able to find them.

D207's? They're pretty old now, no?

EDIT: Those sizes aren't hard to find, pretty much all of bridgestone's current range come in those sizes. Probably not easy to find race scrubs in those sizes though, as I guess most will be 120/70's and 180/55's.
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'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[joe.]

cheers mate, haha yeah they are quite old, and cracked
got a set of metzeler sportec m3 in the original sizes now
cheers
joe
____________________
current: firestorm
previous:gsxr 750, rsv, fz6, xj6, firestorm, bandit 600/825, zx7r, gpz500, gs500, zzr600, xj600, zzr600, cbr 600, xj600, cb500, Kawasaki Gpz500, Aprilia rs125, Suzuki gs 125, Kawasaki gpz 500, Suzuki gt 185, Yamaha dtr 125, Yamaha ybr 125, cagiva mito, Yamaha dtr 125, Honda ns 125, Honda cb 125t, derbi senda, gilera dna, peugoet speedfight, gilera runner, mbk mach G, gilera gsm, derbi gpr, peugeot speedfight, italjet formula, derbi predator. since january 2009.

[MarkJ]

I had a '92 CBR track bike which I believe is the same as yours, and that had a 160 tyre which was quite close to the swing arm and mudguard, so not sure with the 170, although you'd probably be fine. I do know it handled well and there didn't seem to be a lack of grip from the 160 rear (I'm used to 180's). I think 160's were a bit easier to find too.

[joe.]