Dia compe evo-v levers

[bicycletricycle]

I believe these are the same lever body as the 287s with a different lever blade only , been thinking of buying a pair to check them out. Not sure why this lever shape got invented.

I guess for old school style MTB drops that have all the flair below the lever so you end up with the levers pointing forward and not following the shape of the drops ?

[Mark McM]

Originally Posted by bicycletricycle

I believe these are the same lever body as the 287s with a different lever blade only , been thinking of buying a pair to check them out. Not sure why this lever shape got invented.

Taking a look at the 287Vs, I think I understand the Evo-V shape. The 287V has a relatively straight lever blade. Due to the position of the blade pivot, there isn't much offset between from the fingers to the pivot when pulling on the blades from the hoods, which means the hands can't get much braking force (leverage) when on the hoods. One way to improve leverage is to curve the blades back, increasing the distance between the hand/fingers and the blade pivot. The problem with this is that it decreases how far you can pull the blades back before they hit the handlebar. Bending the blades laterally to the outside of the bar allows the blades to be pulled back further, so you can can get full blade travel (i.e. full cable travel). A bit of compromise, and maybe a little awkward to use, but it does allow a longer cable travel.

[bicycletricycle]

I have been thinking about this problem for some time and I think I am going to make some non aero long pull levers for v brakes. I like v brakes on big tire drop bar bikes but I don’t really like any of the levers , travel agents are okay but always feel like a band aid

[eephotog]

Originally Posted by bicycletricycle

I have been thinking about this problem for some time and I think I am going to make some non aero long pull levers for v brakes. I like v brakes on big tire drop bar bikes but I don’t really like any of the levers , travel agents are okay but always feel like a band aid

Non-aero long pull levers are the missing link to make v-brakes and moustache bars play nice IMHO

[bicycletricycle]

Originally Posted by eephotog

Non-aero long pull levers are the missing link to make v-brakes and moustache bars play nice IMHO

Agreed, I would also like that set up. Me and a dozen other people probably

[tellyho]

I feel like I can get a decent housing routing with aero levers on the moustache bar. Where do you put your levers?

[coffeecherrypie]

Could a manufacturer integrate a travel agent style cable pull adapter into a more normally shaped lever?

[Mark McM]

Originally Posted by bicycletricycle

I have been thinking about this problem for some time and I think I am going to make some non aero long pull levers for v brakes. I like v brakes on big tire drop bar bikes but I don’t really like any of the levers , travel agents are okay but always feel like a band aid

A non-aero long pull road lever would probably just make the situation worse. When aero routed brake levers were introduced, brake lever ergonomics got better, particularly when braking from the hoods.

A non-aero routed lever (cable pulled downward through the lever "horn") requires that the blade pivot be offset to rear of of the horn, so that there is a lever arm to pull the cable. This puts the pivot more inline between the hand and the blade, and also means that blade moves downward when it is pulled back. This is difficult to do when hands are on top of the hoods. An aero routed lever (cable pulled forward through the lever body) allows the blade pivot to be moved to the front of the lever. This puts the pivot in front of the hand, and means that as the blade is pulled back, it moves upward relative to the hand. This is makes squeezing the lever more effective when the hand is on top of the hood.

To create even more cable pull, a non-aero routed long pull lever would require the blade pivot to be moved even further back into the lever body, perhaps even behind the index and middle fingers (the levers that actuate the lever. Relative to the fingers, the lever would move in an even more downward, so braking wint hands on top of the hoods would require the fingers to move the lever even more downward when it is pulled back. This may make braking with hands on the hoods nearly ineffective.