Anyone tried 650b on older warbird?

[fontmoss]

I’ve been digging around tinternet trying to find an answer but most searches just find the more recent models which definitely do take 650b. I’m on a 2015 version (fluoro yellow one) which has limited clearance for 700c tyres so I’m keen to try some 650b if I can. Obvious answer is to track some down locally (I live in Bristol) and sling them in the frame but as I’ve seen a few owners on here I thought I’d check. Thanks!

[Bearbonesnorm]

I'll have a word with Shona / Rich over the weekend, I very much imagine that they'll know.

[fontmoss]

Thanks!

[fontmoss]

Any joy?

[Bearbonesnorm]

Sadly not, they were just setting off as I arrived but Rich got ill so I didn't see either again ... I'll ask for you tomorrow.

[fontmoss]

Thank you! Hope everyone feeling better

[Bearbonesnorm]

Much better now

Word is, the pre-142 backends did come fitted with a 700 x 38 tyre but you could squeeze a 40 in there but clearance for mud was tight. BB drop is the same as the newer frames so no issues with smashing pedals etc. Shona thinks she once tried a 650 x 41 Knard in there but nothing bigger. My personal feeling is that you'd probably get 650 x 42 in with clearance but probably not much more*.

*obviously, this will all depend on the actual tyre.

[fontmoss]

Thanks for that! I’ve had a 700x40 g one on but it was tight for clearance. 650b I wasn’t sure if the little s bend in the chain stays would catch. I’d settle for a 650b with 40ish as I think the extra volume over 700c would be a winning combo. Hmm might see if can borrow a wheel set to try!