Hydro Cross-Top bra...
 

[Closed] Hydro Cross-Top brakes

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Haven't heard anything from Hope in a while, so giving up waiting for them.

I've currently got SRAM Force CX1
Has anyone read about compatibility with the newish Shimano BL-RX812-R levers?

If not, has anyone researched a reasonably priced Shimano groupset that will be compatible and not toooo much heavier than Force?


 
Posted : 09/05/2020 2:29 pm
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SRAM use DOT and Shimano mineral so they definitely will not be cross compatible.

If you want hydraulic cross top I'd bite the bullet and buy GRX.


 
Posted : 09/05/2020 3:06 pm
 pdw
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You can't mix Sram and Shimano hydraulics as they use different fluids.

Have just built a new bike with GRX 810 and am very impressed. Much prefer it to Force CX1 on my other bike. Merlin have had some good deals on it recently.


 
Posted : 09/05/2020 3:07 pm
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Hope v twin user here


 
Posted : 09/05/2020 3:54 pm
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Hope v twin user here

They're not hydro top levers though and to be fair, I'd rather have drops only than those, having used them for a long time myself.


 
Posted : 09/05/2020 4:55 pm
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Ok, understood about compatibility.
Better get saving then. Are the cross-tops compatible with any Shimano grx groupset?


 
Posted : 09/05/2020 5:11 pm
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I see that the left levers are dropper-ready on some models too. That might the final push to change over.


 
Posted : 09/05/2020 5:15 pm
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Theyโ€™re not hydro top levers though and to be fair, Iโ€™d rather have drops only than those, having used them for a long time myself.

I've got a v-Twin as well - specifically becasue when I built the bike it was for Three Peaks and back then that was the only option for cross-top levers. Used them for a few years but last time the bike got stripped down I removed the cross-tops and I'm just running the V-Twin now. The brakes feel far better - those cross-tops were a massive extra friction in the whole system.

As mentioned above the Shimano GRX uses mineral oil and SRAM is DOT fluid so if you want hydro cross-tops, your only realistic answer unless you can magically find a set of Hope anywhere (unlikely, they all went to team riders) is to go for a full GRX setup.

I was looking at that option for a while when I was rebuilding the CX but it would have been easier just to buy a whole new bike rather than screw around with all the changes required, especially since the drivetrain I have is perfectly good - the changes would all have been for the brakes.


 
Posted : 09/05/2020 5:31 pm
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I've a pair of the GRX ones on a shelf waiting for a bleedkit to turn up. Will update on install and performance if I remember. Going to be fitted to 105 7020s and can't see why Tiagra would not work either, all BH90 hoses?


 
Posted : 09/05/2020 9:58 pm
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OK panic over for me:

null

https://productinfo.shimano.com/#/com?q=st-rx&cid=C-453&acid=C-454


 
Posted : 09/05/2020 10:15 pm
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Thanks for the chart @tinribz


 
Posted : 10/05/2020 12:11 pm