Author Topic: Just added 17" rear  (Read 2333 times)

Offline Sparkie

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Just added 17" rear
« on: May 16, 2011, 08:35:49 pm »
First of all a big thanks to all the guys that came up with this mod. I found a used Kosman wheel last year and finally mounted up a new tire this past weekend. Very nice upgrade as I was able to put on the Avon Storm dual compound tire. So far I'm very impressed with the handling. I mounted the 160/70-17 tire which is a little taller than stock and noticed a slight lowering of engine rpm at cruising speed. Thats a welcome change too. I'm wondering about speedo calibration now. If the 160/70-17 tire is a little taller than stock, is my speedometer indicated speed closer to being accurate? Or is my indicated speed now further off? Thanks for any help, Mark

Offline T Cro ®

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Re: Just added 17" rear
« Reply #1 on: May 16, 2011, 08:39:03 pm »
Speedo is driven by the front wheel.....  :loco:
Tony P. Crochet
(SOLD) 01 Concours Winner of COG Most Modified in 2010
Ask me about a set of Stick Coils & Harness or Precision Shift Linkage for your C10 Concours

Offline Sparkie

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Re: Just added 17" rear
« Reply #2 on: May 16, 2011, 08:58:12 pm »
 ??? Thanks T-Cro, that makes perfect sense when you put it like that.

Offline T Cro ®

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Re: Just added 17" rear
« Reply #3 on: May 16, 2011, 09:35:04 pm »
??? Thanks T-Cro, that makes perfect sense when you put it like that.

Thought so.....  :rotflmao:

BTW I run a 120/70-17 on my ZRX front end and my speedo is only off by 2 MPH on the slow side..... The 130/70-18 tire mounted to the original wheel used to cancel out any speedo error before I made the swap.
Tony P. Crochet
(SOLD) 01 Concours Winner of COG Most Modified in 2010
Ask me about a set of Stick Coils & Harness or Precision Shift Linkage for your C10 Concours