Building flatbar cx...
 

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

[Closed] Building flatbar cx bike...GRX?

10 Posts
10 Users
0 Reactions
845 Views
Posts: 3503
Free Member
Topic starter
 

Building a flat bar cx bike

Single ring (possibly shimano grx crank)

What shifter, derailleur, and cassette would work

On regular shimano rim brake 700c wheels?

Thinking 11spd.

I noticed shimano do a flat bar road shifter...would this work with a 105 medium or long cage derailleur?

Just trying to figure my options

Any help would be appreciated


 
Posted : 29/01/2022 7:07 pm
Posts: 0
Free Member
 

I have a flat bared Trek crockett with cable disc brakes wanted to put MTB disc brakes on it front works ok with adaptor but not the back 160mm/140mm we have tried both on back will have to put the cable one back on the back been a bit of a nightmare after waiting two months for 160mm adaptor to come then no good two days for 140mm still no good for frame happy days.


 
Posted : 29/01/2022 7:21 pm
Posts: 41395
Free Member
 

Just buy a hybrid? 😉 Sorry/not sorry


 
Posted : 29/01/2022 8:09 pm
Posts: 17106
Full Member
 

I was thinking that ^^^^
My Whippet with cross tyres is 10 kg ready to ride. Would that not suffice?


 
Posted : 29/01/2022 8:14 pm
Posts: 33
Free Member
 

105 flat bar shifter will work with any GRX rear mech. Ditto for the tiagra shifter as well although that's 10 speed but still compatible.


 
Posted : 30/01/2022 2:57 am
Posts: 12482
Free Member
 

My Whippet with cross tyres is 10 kg ready to ride. Would that not suffice?

All depends if you want it to feel and look like a flat barred CX bike or a rigid MTB.

Also have the option to put drops on it as intended when you realise they are better than flat bars...


 
Posted : 30/01/2022 7:18 am
Posts: 1318
Full Member
 

Nah, Just use a MTB shifter and derailleur then you’ve got the option to use whatever cassette range you want. I’ve used an 12 speed XT shifter and a deore mech on mine.


 
Posted : 30/01/2022 7:54 am
Posts: 3503
Free Member
Topic starter
 

Ok, will shimano flat bars shifter SLRS700 work with grx rear mech and 11 34 cassette

I already have the cx frames but thanks anyway


 
Posted : 30/01/2022 11:57 am
Posts: 826
Full Member
 

I've got exactly that - 11s XT8000 GS Rear mech, XT shifter, 11-42 XT cassette. Road cassettes are *slightly* different spacing but work in practice, have an 11-36 SRAM that I use occasionally. Road/MTB mech & shifters don't mix without some kind of thingummyjig inline.


 
Posted : 31/01/2022 2:30 pm
Posts: 10485
Free Member
 

Wouldn't bother with the expenses of GRX if you're sticking flat bars on you "agro-gravel" bike 😀


 
Posted : 31/01/2022 2:32 pm
Posts: 5626
Full Member
 

The word your searching for is hybrid.

There’s no shame in it, say it slowly. Hybrid.

Now go and shout it to the world!


 
Posted : 01/02/2022 12:22 am

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