27.5 x 1.40 nobbly?

Hello there,

I've switched to 650b wheels to try and fit a more off road 'October approporate' lease of life to my gravel bike. The only issue is, i can comfortably fit a 27.5 x 2.0 on the front. But the 27.5 x 1.5 is rubbing the rear triangle on the back.

Having looked far and wide im begining to loose hope that there is a nobbly tyre out there i can fit on the back of this dammed frameset.

If anyone's come across anything that might work, i'd love to hear from you.

Oh, it's a KenisisUK RTD 55.5cm

You could always get the knife out and trim off the side knobs on your 27.5x1.5s

Probably better asking in the Which Tyre thread but you might be able to fit something like 650x38/40/42 gravel tyre which has smaller side knobs compared to an MTB tyre. Depends on the tyre design. WTB Resolute or Hutchinson Touareg kinda thing. You don't need so much grip on the back anyway.

Hutch Touareg only in 47mm width for 650b

@Chaley I was tempted, but unfortuantly not an option as it's the sidewalls that are rubbing.

@hippy Thanks, my bad - wasn't aware of the which tyre thread. So the current Maxis Ramblers are 1.5" = 38cm which is rubbing. Hutchinson & WBT look like good options, but cant find the 650b variant in anything other than 42c. I have however come across [this] which might work(https://fawkes-cycles.co.uk/schwalbe-g-one-allround-tle-performance-raceguard-folding-tyre-27-5-x-1-35-inch-p18456)

@HarmanMogul Touareg looks good, unfortunatly 47mm wont fit in the rear triangle.

I was just spouting example gravel tyres I've used. I'll let the OP do the googling.

38cm which is rubbing

Yep, foot-wide tyres would do that. ;)

Continental Terra Speed 650B x 40mm might fit. It always depends on the design of the tyre and the rim. Some are true to size, some will come up bigger/smaller depending on rim (and lies)