I'm using my old Trek Postal (5200/5400) as my winter beater. I'd like to test some studded tires, such as the Schwalbe Winter700x30 Wire but I'm not sure if the 30's will fit as the largest I've ridden to date is a 25 (or 27?).

Has anyone ridden a 30 or know how to determine if they'll fit, especially with the aggressive tread and studs.

Thanks, Matt

Tire for reference: http://www.amazon.com/dp/B00AAZFGVI/ref=wl_it_dp_o_pd_nS_ttl?_encoding=UTF8&colid=313MZ1AZTU1DO&coliid=I19MD4W468VK20

Tire on Amazon

1 Answer 1


Most likely not.

Most frames with caliper brakes can at a maximum take a 28 or really narrow and slick 30 (assuming a modern short reach caliper). A nobby tire will almost certainly not fit regardless of size. if there's a lot of clearance currently ( > 1cm), I would take it to your lbs and check with them.

  • That being said, there are frames (KHS Flite 220) comes to mind with super large caliper brakes which can clear pretty much anything. This is not one of them though (plus, it has other features which don't make it a good bike for winter commuting).
    – Batman
    Nov 30, 2014 at 5:58

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.