Re: RE: Re: Bleeding Disc's

On 3/22/2025 4:54 PM, cyclintom wrote:

On Fri Mar 21 16:39:35 2025 AMuzi  wrote:

>
Since every system has its own features and foibles, it's
good that we have choice.

    The word from the rolling resistance gang now is that on the European roads 40 mm tires have lower rolling resistance than 28's depending on surface by as much as 70 watts! That is no longer a choice since you cannot use normal rim brakes on a 40 mm tire. That requires hydraulic discs with a 148 mm wide rear and 110 front and at least 12 mm through axles. You cannot do that with CX V-brakes since the diameter or the tire would interfere with the cross cables. When I ride across cobblestones with 28's it is like hitting the brakes.
 Also, flat mount actuators for 100 mm discs are very specific and very new.

If you don't like the current brake caliper mounting format, wait a minute. There will be new ones shortly with another host of adapters.
--
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971