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Main Area => General GS500 Discussion => Topic started by: ashman on June 22, 2007, 11:33:18 AM

Title: ASAP tire sidewall aspect ratio question !!!
Post by: ashman on June 22, 2007, 11:33:18 AM
can i run a front tire with a sidewall aspect ratio diff then the back, say a 70 in the front and a 60 in the rear?? how would it affect handling?
I'm trying to get the order shipped today.

-Ash
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: spc on June 22, 2007, 11:35:27 AM
Can you?? or should you???  as long as they aren't hugely different go for but allow your self time to get used to the new handling just like you would on a new bike :thumb: :thumb: :thumb:
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: ashman on June 22, 2007, 11:38:10 AM
i assume i can but dunno if i should
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: ashman on June 22, 2007, 11:42:16 AM
For better or worse I just ordered a pair of metzler z4's 120/70 17 and 160/60 17 for my bandit. hope they get hear in time.

-Ash
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: darb85 on June 22, 2007, 11:45:12 AM
if anything it should be bigger in back(taller) and smaller in front.

at least thats how it is in cars, bigger in front makes it push where as bigger in the back makes it dive to the apex better, i would expect the same out of a bike, but what do I know
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: manofthefield on June 22, 2007, 12:03:48 PM
I'm sure it'll be fine.  Most supersport bikes run with like 120/70 in front and 180/55 in back, IIRC.  What are the stock sizes for the Bandit anyway?
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: scratch on June 22, 2007, 12:06:54 PM
Yes you can, in either direction.  Meaning you can put a 110/70 on the front and a 140/80 on the rear, or a 120/80 on the front and a 150/60 on the rear.  In the first case, you could even go to a 130/90.  In the latter, I've seen 180/55 and 190/55.
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: RobTheTyrant on June 22, 2007, 01:34:20 PM
the aspect ratio only means how tall the tire is in relation to the section width.  i.e. a 150/60r17 tire is 5.9 inches wide and 60% of that is the sidewall.

W/ArD...[(W/25.4) x A%] x 2 + D = height

[(150mm/25.4") x 60%] x 2 + 17"
[5.9" x 60%] x 2 +17"
3.54" x 2 +17"
7.08" + 17"
24.08"+height

that's how to figure out sizing... do that and you can't go wrong.
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: ashman on June 22, 2007, 04:36:55 PM
stock is 120/60 17 160/60 17  I assume it will be fine. I got a good deal since the Z4 discontinued and replaced by the Z6. I had a Z4 and Z3 on my GS at for a while, they were pretty good tires.
Title: Re: ASAP tire sidewall aspect ratio question !!!
Post by: gsJack on June 22, 2007, 08:31:37 PM
Quote from: ashman on June 22, 2007, 04:36:55 PM
stock is 120/60 17 160/60 17  I assume it will be fine. I got a good deal since the Z4 discontinued and replaced by the Z6. I had a Z4 and Z3 on my GS at for a while, they were pretty good tires.


Earlier Bandit 600 had 110/80 front and 150/70 rear, from Dunlop:

Make: Suzuki | Model: GSF 600S (96-99) - Bandit
Front Rim Size: 3.00x17  |  Rear Rim Size: 4.50x17

Recommended Front Tire:
Tire : GT501   |  Size : 110/80B17   |  PSI/Loaded : 33
Click for Info 

Recommended Rear Tire:
Tire : GT501   |  Size : 150/70B17   |  PSI Rear/Loaded : 36
Click for Info 

Alternative Front Tire:
Tire : D205   |  Size : 110/80ZR17   |  PSI/Loaded : 33
Click for Info 

Alternative Rear Tire:
Tire : D205   |  Size : 150/70ZR17   |  PSI Rear/Loaded : 36
Click for Info 

I'm currently running 110/80 Lasertec with 150/70 RoadAttack, works for me on 02 GS.