Sean.S
Trackday Trickster
Joined: 20 May 2015
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 Posted: 13:35 - 09 Sep 2016  Post subject: R1 front end conversion on a thundercat?? |
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I was thinking about fitting the front forks and callipers from an early R1 onto a thundercat, as ive seen it done before and wondered how straight forward a swap it would be.
Would i need to use either the yokes from the R1? Or would the stanctions of the two forks be the same diameter? Also Will the thundercat front wheel fit the R1 forks? And would there be anything else i would need to know?
Has anyone successfully done this before, and can tell me of their experience with this setup? Cheers 
Sean |
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MarJay
But it's British!
Joined: 15 Sep 2003
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| Posted: 13:56 - 09 Sep 2016 Post subject: Re: R1 front end conversion on a thundercat?? |
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| Sean91 wrote: | I was thinking about fitting the front forks and callipers from an early R1 onto a thundercat, as ive seen it done before and wondered how straight forward a swap it would be.
Would i need to use either the yokes from the R1? Or would the stanctions of the two forks be the same diameter? Also Will the thundercat front wheel fit the R1 forks? And would there be anything else i would need to know?
Has anyone successfully done this before, and can tell me of their experience with this setup? Cheers
Sean |
Ok so have a think about what you're saying. Have a look at the forks on a picture of an early R1, and then have a look at the Thundercat forks. Then think if you need the yokes from the R1...
You need to check that the stem diameter and length is the same for the R1 yokes as for the Thundercat yokes. You'll be best off trying to find someone who has done the swap. I'd imagine the Thundercat forum (if there is such a thing) would be the place to try. However, the R1 forks are not known for being particularly good, and may not be that much of an improvement over the 'cat ones. Some people would argue at this point that the brakes would be improved too, but in this case the 'cat brakes are the same as the R1 (blue spot Sumitomo 4 pot calipers).
My suggestion is to send your forks away to a suspension expert to have them re-valved and re-sprung for your weight and riding style. This will be better than fitting R1 forks of unknown provenance and are known to be a massive compromise to cope with the early R1's wheelie-prone nature.
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another. |
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