[Street trials crank length preference?]

1 hour ago, Swoofty said:

Crank length is pretty much an endless debate. 99% of all the 'crank length' vids on youtube mostly concern roadies, but they're not far off. I rode 175mm for years buying into the fact that torque = force at a distance. Now I have bikes with 170mm arms and I don't notice any difference whatsoever in 'torque'. What you do notice is stiffness. 170mm, no matter the brand, feels stiffer. You also have less fitment issues with 170 not hitting the chainstay on smaller bikes. Not sure why Tarty wouldn't have 170 and smaller available unless it's still supply issues. Whenever trials riders start up the 'crank length' debate I just remind them that Charlie Rolls rides 165mm ;-)

Thanks for the reply. I guess the issue is moreso the supposed loss of balance or inability to spin as easily with longer cranks. I'm not sure how accurate this is.

[Street trials crank length preference?]

After looking on the forum it seems that people prefer 160-170mm (ali c included). This is confusing as it seems that basically all inspired trials bikes come with 175mm standard and all street cranks offered on tartybikes are 175mm. Is this maybe the new standard and 160-170mm was an older style of riding?

[Are hydraulic rim brake mounts universal?]

I have just bought some hs33's not realising that they come with the Evo two bold mount and my frame is 4 bolt. Would it be ok to use my previous echo tr 4 bolt mount to hold them?