• I'm slowly getting my stuff together for my first 650B build and I'm looking at nice shiney mudguards, VO and GBs.
    I'm aiming at 42mm tyres and wondered if I should go for 700C or 650B guards, is there any real difference given the circumference of the two?

  • Noticable enough, I had GB 700c 60mm on my 650b bike, but it create a big gap with the 42mm (less so with 48mm).

    I recommend GB 50mm 650b mudguard for the perfect fit.

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