tyre sizes/tire sizes
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tyre sizes/tire sizes - 4/29/2006 3:57:05 PM
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eddie v twin
Posts: 16
Joined: 4/21/2006
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Hi there , I have a honda cbr 600 FL ( hurricane, jelly mould type) , what I'd like to know is it possible to fit larger tyres to the bike ?.It comes as standard with a 110/80/17 on the front and a 140/80/17 on the rear. Would it possible to fit a 120 on the front and maybe a 150 or even a 160 on the the rear ??
Thanks Eddie
5/14 EDIT: Added US spelling of 'tire' for search purposes.
< Message edited by rrasco -- 5/14/2007 7:07:59 PM >
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RE: tyre sizes - 6/4/2006 11:09:35 AM
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gixxereater
Posts: 1492
Joined: 5/23/2006
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it comes stock with at 130 on the rear. Most people put a 140 on as the 130 is tough to find. No, you wont squeeze a 150 or larger on the rim. Cant fit a 120 on the front either. You are stuck with bias tires. And in those sizes. I know from exp that that same bike with dunlop 501's will hold up just fine with newer bikes in some twisties.
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RE: tyre sizes - 6/4/2006 11:58:26 AM
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eddie v twin
Posts: 16
Joined: 4/21/2006
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cheers for that just like you said really these tyre sizes are hard to come by at good prices
Eddie
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RE: tyre sizes - 6/5/2006 1:19:44 PM
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michigan_313
Posts: 694
Joined: 2/24/2006
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you can go up to 150 on the rear. i am using a michelin pilot road 150/70/17. works just fine with no chain or swingarm clearance issues. no rear handling ills. i've been using 150's consistantly for the past several years without any problems. at 160 the tire will still fit, just barely between the swingarm but will crown causing the rear to be unstable.
http://cbrworld.net/photos/personal_bike_accessories_and_equipment/picture205510.aspx
the front doesn't take a 120 very well as the rim is a bit too narrow causing the tire to crown. it will fit, but your turning and side to side transition will suffer. i run a bridgestone bt-014 110/70/17. side grip is very good but you will probably hit hard parts before ever getting the bike really cranked over.
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RE: tyre sizes - 7/7/2006 6:05:58 PM
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michigan_313
Posts: 694
Joined: 2/24/2006
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did you see the link to the pic. no fitment problems. 150 on a 3.5" rim is really the max without changing the profile shape of the tire.
i could be wrong, but the dunlop only has that size in the GT501 model. good tire but it is a bias ply tire. i had used a 501 in the past and it is a good tire especially for commuting. a good tire up until you push real hard like say if you're doing track days or running real hard through twisties all day long.
i have no idea about bridgestone rear. the bt014 front that i am running now is very good. a radial tire. and the michelin rear that i am running is also radial.
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RE: tyre sizes - 7/8/2006 5:46:35 PM
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michigan_313
Posts: 694
Joined: 2/24/2006
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well, 110 and 130 are oem stock sizes.
i still run a 110 front just in a lower aspect. but the rear i just went from 130 to 150. i don't feel every crack and groove from the front. maybe it's just me. i prefer running the 110 because i like the neutral feel and quick turn in and side to side transition.
the michelin rear is nice. excellent grip and decent warmup time.
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RE: tyre sizes - 7/9/2006 1:13:17 AM
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gixxereater
Posts: 1492
Joined: 5/23/2006
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Your bike will need bias. The chassis harmonics wont take a radial tire very kindly. Also, a radial tire of a given width, needs a wider rim to fit properly compared to a bias of the same size. A 150 radial wont fit like a 150 bias.
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RE: tyre sizes - 7/9/2006 4:38:03 AM
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michigan_313
Posts: 694
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i recommend whatever you feel like getting because it is your ride and your money. i am merely passing my experiences on to you.
the manufacturer recommends bias but it doesn't say anywhere you cannot run radials nor is there anywhere that definitively says that radials will have a negative impact on the chassis.
what i do recommend is that you do not mix radials and bias. this will have a negative effect on the bike.
and as far as fitment is concerned, i run the michelin because their support says i can on that size rim.
if you read around you might run into a few who run 160's and stand by it. that's fine by me. the profile of the tire will definitely change but if they like running it, who am i to argue.
here's what i did the first couple years. i ran bias ply front and rear. dunlop gt 501's, 110 and 150 (went through 2 sets f&r)(when pushed really hard, the tread gets too much heat and they start feeling greasy). then after that i ran a dunlop d220 front with a gt 501 rear. it was fine day to day but it would get weird if pushed real hard. next up is what i am using now, radials front and rear. no problems even when pushed hard.
now i don't know the state of your ride. if your frame is straight then you need to look at your suspension and how it is setup. most handling ills can be attributed to poor setup (preload, rear wheel not aligned, etc.) or worn parts (bearings, seals, sagging springs, fork oil, brakes, etc.). i've changed out most of my bearings and had my forks rebuilt. no problems.
also, i do not know what kind of riding you are doing. for commuting with a weekend run thrown in, i'd go bias, the tires last longer. if you are going for more performance and want increased grip, radials are the only way to go since that is where all the grippy stuff is at but they wear down faster. there is quite a difference between bias and radials as far as ride quality, side grip, tread wear, turn in, side to side transitioning, feedback, etc.
i could go on and on, but bottom line is you need to think about how your bike is setup and the type of riding you plan on doing. i hope this helps you make a decision. if you want to play it safe, get bias, if you want to experiment a little, get radials.
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