17" Rear Wheel for aTrident - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 11 (permalink) Old 12-12-2012, 08:24 PM Thread Starter
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17" Rear Wheel for aTrident

Hi all, been thinking about putting the later 3 spoke wheels on my Trident, mainly to avail of the wider choice of tyres with a 17" rear. I was just wondering if those that have done this conversion thought it was a worthwhile exercise. Any thoughts appreciated. Cheers, Gib
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post #2 of 11 (permalink) Old 12-13-2012, 09:56 AM
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I did it, for the same reason. It was a straight swap with no problems.
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post #3 of 11 (permalink) Old 12-14-2012, 07:19 PM Thread Starter
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Thanks Triuman, I've lined up a pair of wheels with tyres too so looking forward to putting them on. Cheers, Gib
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post #4 of 11 (permalink) Old 12-14-2012, 07:32 PM
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just do it
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post #5 of 11 (permalink) Old 12-14-2012, 09:53 PM
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Did it on my Trophy straight swap not too expensive, if you go for a 180 section the gearing is almost identical.

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post #6 of 11 (permalink) Old 12-14-2012, 11:17 PM
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Quote:
Originally Posted by triplestrength View Post
Did it on my Trophy straight swap not too expensive, if you go for a 180 section the gearing is almost identical.
180 is the tire width, which wouldn't have much to do with it. 180/50? 180/55? It's the tire height that'll determine how close it is...

(For anyone who doesn't know, tire sizes are written as "width in mm/height as percentage of width," so a 180/50 is 90mm tall, a 180/55 is 99mm tall, etc.)

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post #7 of 11 (permalink) Old 12-15-2012, 05:08 AM
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Quote:
Originally Posted by KitNYC View Post
180 is the tire width, which wouldn't have much to do with it. 180/50? 180/55? It's the tire height that'll determine how close it is...

(For anyone who doesn't know, tire sizes are written as "width in mm/height as percentage of width," so a 180/50 is 90mm tall, a 180/55 is 99mm tall, etc.)

Cheers,
-Kit
Basically, but not an exact science.
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post #8 of 11 (permalink) Old 12-15-2012, 06:00 AM
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The 17" wheel is a wider J so can accept a wider profile tyre ( profile for profile the wider tyre with the same aspect ratio would naturally be taller). But the 180 is usually a 55 profile so it's slightly lower.

It is an exact science as its just maths (which I didn't do as the exchange was happening regardless). However I just put the wheels with new tyres side by side, same height, therefore gearing is same.


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post #9 of 11 (permalink) Old 12-15-2012, 06:27 AM
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Hi,

An old post that may have some information to help you?
....http://www.triumphrat.net/t3-sport-t...cket-size.html

Geoff
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post #10 of 11 (permalink) Old 12-15-2012, 09:26 AM
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It would be so simple if all tyres from different manufacturers were the same, but we live in the real world and they are not. Just fit the wheels with your original sundries and you will be a happy bunny. Don't worry about gearing. The t3 motor is so flexible. 99% of people would not tell the difference, just got it going around in their head.
My friend Clive Wood was probably the 1st in the world to to it when he was racing t3's in 92 so he could run race wets (used a gsxr rear wheel). I done the same soon after with a ZXR750 wheel as there were non from triumph. Believe me you got it easy without matching discs and calipers aswell. Guess that's why we like fitting 675 wheels in 1050 tigers and Daytona 955i's (tssa)

Last edited by t552; 12-15-2012 at 09:42 AM.
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