Shimano GRX top bar...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

[Closed] Shimano GRX top bar lever - How does it work?

6 Posts
4 Users
0 Reactions
132 Views
Posts: 791
Free Member
Topic starter
 

I’ve got a Jones loop bar on my gravel bike and I am feeling a bit exposed while getting in “aero” position holding the front bar. I’ve got Shimano XT levers connected to GRX 810 callipers.

How does it work? Does the hose from the primary lever route to the top bar level then on to the calliper? Do you reckon it would work with XT levers?

I think the model is Shimano GRX BL-RX812.

Thx for your thoughts.

Rich


 
Posted : 22/05/2022 7:45 pm
Posts: 1154
Free Member
 

Dealer manual answers all your questions

Hose from primary lever->secondary lever-> hose to caliper


 
Posted : 23/05/2022 10:15 am
Posts: 791
Free Member
Topic starter
 

That is brilliant, just what I need, thank you.


 
Posted : 23/05/2022 3:55 pm
Posts: 43345
Full Member
 

How will you mount the lever on the Jones bars? It uses a 38mm clamp.


 
Posted : 23/05/2022 4:09 pm
 DrP
Posts: 12041
Full Member
 

31.6mm clamp...

Needs 38mm of bar space..

But still - the loop of a loop bar is only 22.somethingmm isn't it..

DrP


 
Posted : 23/05/2022 4:24 pm
Posts: 43345
Full Member
 

Oops. That's what I meant 😉


 
Posted : 23/05/2022 4:25 pm
Posts: 791
Free Member
Topic starter
 

Yes, I’d have to use a shim. It certainly won’t be a pretty set up if were to do it.


 
Posted : 23/05/2022 6:32 pm

6 DAYS LEFT
We are currently at 95% of our target!