180/55/17 or 190/55/17 Rear Tyre??

Lynchasaurus · Borekit Bruiser Joined: 22 Jan 2012 Karma :

Currently I'm running a 180/55/17 tyre (Bridgestone battlax) on my z750, and was wondering what difference it would make if I got a 190/55/17 tyre and how it would change the feel of the bike in cornering and if it would even fit with enough clearance from the swing arm, chain etc. ??

Any advice is welcome....

gray84 · World Chat Champion Joined: 18 Apr 2008 Karma :

I'm not full of knowledge but my r6 come with a 190 and I fitted a 180. It turned into the bends much easier. Almost like it wanted to go round bends. I noticed this when I was fairly newish to bikes and didn't read up on it. Just from experience.
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Road bike - 2002 YAMAHA R6(SOLD) 2008 YAMAHA R1(SOLD) 2007 APRILIA SXV 550(SOLD) 2007 SUZUKI GSXR 600
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binge · Emo Kiddy Joined: 03 Jul 2004 Karma :

190/55 is the BSB size IIRC.

Going from 180/55 to a 190/55, will raise the back end a little, probably make it a little harder to turn in quick, but it will make it a little more stable at high speed on sweeping bends etc. Providing your rear wheel is wide enough to take the extra size in tyre.

190/50 is a whole different kettle of fish.
It has a smaller profile than the 180/55, and it's wider, making it more lardy,and lower at the back end.

My R1 is on a 190/50, and I am looking to go 180/55. Much better size.
I'd stick with what you've got. Thumbs Up

Lynchasaurus · Borekit Bruiser Joined: 22 Jan 2012 Karma :

Cheers mate, I just heard of someone doing it and was curious of the pro's and con's to having a wider tyre,

Thanks

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

190 section tyres are for 6" rims
180 section tyres are for 5.5" rims

Stick to the stock size for your bike

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

binge · Emo Kiddy Joined: 03 Jul 2004 Karma :

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

Lynchasaurus · Borekit Bruiser Joined: 22 Jan 2012 Karma :

Well the z1000's run a 190 rear tyre standard and both bikes are identical apart from power, and wheels obviously so putting a 190 tyre on my bike can't be all bad if they have put it on the z1000's which are supposed to be better then the 750's??

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

Are you saying both the z750 and z1000 have the same size rear wheel? (not diameter, i mean width) yet use different tyre widths? I doubt it

190 section tyres are usually added to larger bikes to increase their contact patch to the road

Lynchasaurus · Borekit Bruiser Joined: 22 Jan 2012 Karma :

That's assuming I get some wheels off a z1000 aswell so the tyre fits properly**

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

lol doesnt seem worth the effort for a slightly bigger contact patch and slightly raised rear? If you want to raise the rear for quicker handling why not use some different dog bones to do it.

Lynchasaurus · Borekit Bruiser Joined: 22 Jan 2012 Karma :

Stop replying so fast! Haha

I can't find the rim sizes but the 1000 rim must be a 6" then.

Lynchasaurus · Borekit Bruiser Joined: 22 Jan 2012 Karma :

I did raise the rear before slightly but then people started saying I was trying too "street fighter" my bike /: haha

binge · Emo Kiddy Joined: 03 Jul 2004 Karma :

Lynchasaurus · Borekit Bruiser Joined: 22 Jan 2012 Karma :

I was only asking what the difference was between a 180 tyre and a 190, haha

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

Lynchasaurus · Borekit Bruiser Joined: 22 Jan 2012 Karma :

Nothing's wrong with my bike! LOL

I just wanted to no why bigger bikes run 190 tyres and mine only has a 180....

Wanted too see what I was missing out on....(:

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

P.addy · Red Rocket Joined: 14 Feb 2008 Karma :

GSXR K1-K3 are supposed to have a 180 rear, I use 190's.

Wheel is same size on the older Y model which came with a 190 stock.

I believe a 190 gives less contact when upright?

evoboy · World Chat Champion Joined: 20 Aug 2009 Karma :

A 190 in theory should give more of a contact patch at most lean angles.

Cant say ive really noticed a difference between the 2, other than on my old zx6 i used to run close to the edges of the 180 on track and it would cause it to slide/drift ( gotta love supercorsa's!). On 190's that never really happend...
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P.addy · Red Rocket Joined: 14 Feb 2008 Karma :

I have a set of those in the garage Luke Laughing

120 70 and 190 55?

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

I think it will probably ruin the handling of the bike... or what little there is on a z750 anyway.
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Mikey3 · World Chat Champion Joined: 04 Nov 2011 Karma :

It's probably a 180 as standard, so i'd keep it to 180, like said above, helps in bends a LOT and a 180 is hardly skinny so you can't upsize on the argument of 'its more stable in a straight line'... bollocks.
Stood still it looks more 'MANLY' but you'll look less 'MANLY' when you get out cornered when you're actually riding Wink

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My mate had one on his gix 750 and he said it looked cool but felt horrible to lean into corners, said it just didn't want to.
Really the negatives well outweigh the single poser positive.

Mike
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