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Old 11-03-15, 01:57 PM
The Freewheeler
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Join Date: Sep 2011
Location: ATL/CHI
Posts: 232

Bikes: '37 Iver Johnson Racer, '44 BSA Airborne, '45 Swiss Militarvelo, '92 Fat City Slim Chance, '97 Pinarello Monviso, '03 Giant TCR Composite, '12 Bianchi Super Pista, '15 Humble CX

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Tire Clearance (In)consistencies

I am not a framebuilder, but just had a custom CX frame build by a well-respected shop. I just received the frame and threw on a wheelset to check clearances, only to notice that the clearances at the seatstay, chainstay and fork are consistently inconsistent. Using an accurate caliper, I measured:

seatstay to tire: 21mm
chainstay to tire: 9mm
fork to tire: 16mm
(tire used was 32mm)

The fork clearance looks incredibly awkward to me, and I can barely increase the tire size because of the chainstay clearance. The fork looks like it was built for a 44mm tire, while the rear looks like it was built for a 32mm tire. As builders, how acceptable/unacceptable is this? Thanks for any opinions!
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