br451 to ultegra 6800, worth the upgrade?

spatt77

hi, i currentley have a Cube Agree with stock br451 brake calipers on, there ok (ish) in the dry but in the wet i`m not impressed. will i get a massive difference in ultegra 6800 or will i feel a litttle disappointed? thanks for any advice in advance

supermurph09

I have the GTC Race and swapped the stock calipers for the Ultegra BR6700 calipers and noticed the difference. They also look alot nicer!. I bought them from JE James for about £40 in a sale they had on.

matt-h

i notice a huge difference from 105 5700 to Ultegra 6800 brakes.
How much of that is caliper, lever, cable i dont know

Matt

spatt77

i think the 6800 is dual pivot, which apparentley makes quite a difference! the 105 calipers are better than what i have on at the moment, so i may take the plunge:)

Chris James

spatt77 wrote:

i think the 6800 is dual pivot, which apparentley makes quite a difference! the 105 calipers are better than what i have on at the moment, so i may take the plunge:)

BR451 are dual pivot too, but they are a 57mm drop brake. 6800 is a standard 49mm drop brake, so there is a good chance that the brakes wouldn't fit on your frame.

In my experinece the main difference in brakes is the pads and the shoes. Buy yourself some koolstop salmon pads in cartridge holders and you will find a world of difference in your existing brakes. If you have difficulty finding the koolstop with metal cartridges then you could try ultegra or simlar ones as Shimano pads are pretty good but can be a bit aggressive

http://www.chainreactioncycles.com/shim ... wgodRk4ATg

spatt77

my mistake, there BR-R561 calipers, are they also long reach?

birdie23

spatt77 wrote:

my mistake, there BR-R561 calipers, are they also long reach?

For some reason it is widely thought that R561s are long drop. They aren't, they're 49mm - 6800s will be fine and you'll notice not only an improvement from the improved pivot system the 6800s have but also the fact you'll now have the correct pull ratio brakes for your 5700 STIs.

spatt77

my agree has Di2, will that make any difference?

birdie23

Not that I'm aware. Pretty sure all recent 105, Ultegra and Dura Ace groups have the same pull ratio.

spatt77

thanks for the info everyone, santa might be coming early:)