Thread: Brompton introducing a 12 speed
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Old 12-07-23 | 12:03 PM
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Schwinnsta
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From: New Orleans, LA
Originally Posted by Jipe
The issue is not ETRTO349 or ETRTO355, there is only 6mm difference !

The issue is the tire clearance on the Brompton frame that limit the tire width to about 37mm (no space in tire width and tire height to go beyond 37mm). .

If there was more space, asking Schwalbe to make for instance a Big Apple 50x349 or Continental to make an Contact Urban 50x349 is not a problem.
I meant to imply that when I said if had been designed around a 355. At the time, narrow tires were thought to be faster.
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