Boardman CX Comp 2017 Brake Upgrade

Zigzak789

Member
Morning all,

Just a quick question as I'm struggling to find out this information online, I'm looking to upgrade my Tektro Lyra disc calipers to possibly Avid BB7'S and was wondering how difficult this would be to do? Would it just be a case of switching the calipers or would the levers need changing too and new cables be required (currently running dual levers, Sora drops and Tektro flat bar)

I'm hoping it's the former and would be a quick job as I'm not the most bike savvy but the Lyra brakes have been a pain to keep adjusted properly.
 

vickster

Legendary Member
I changed the rubbish BB5s to TRP Spyres which get all the plaudits for mech disc brakes (have them on my disc braked bikes)
I think the LBS changed the cables and calipers only. Cost about £40 (I supplied the calipers as much cheaper)
Probably wise to change the cable inners if not done very recently
 
another vote for TRP i have them on my CAAD12 road bike and once setup they've been great i'd say in the dry a bit under rim brakes but in the wet etc loads better, i even wonder if that's why i'm faster on the CAAD more braking confidence.
 

figbat

Slippery scientist
If you make sure you get like-for-like replacements then the levers will be fine. Avid and TRP both make road and MTB versions of their mechanical calipers and you need to make sure you get the right one. My gravel bike is running TRP Spyres with Tiagra road levers - easy to set up and, crucially with mechanical disc calipers, easy to adjust and you can adjust each pad individually.
 

bikingdad90

Veteran
Only limitation you have with disc brake choice is that you will need an IS to post mount adapter to run the front calliper As the fork mounts are sideways. As far as I am aware there are no flat mount adaptors available which rules out some of the new disc callipers from Shimano.
 
OP
Z

Zigzak789

Member
Thanks for the replies guys, the only reason I'm really considering getting the BB7'S because they're £29 each for the road ones on Planet X and the bike cost £300. I just need something more reliable and easier to adjust than the tektro and if it's a simple caliper swap it seems like an ideal solution.
 

Twilkes

Guru
Only limitation you have with disc brake choice is that you will need an IS to post mount adapter to run the front calliper As the fork mounts are sideways. As far as I am aware there are no flat mount adaptors available which rules out some of the new disc callipers from Shimano.
Hi, I found this post on a search, but am I reading it right that there's no adapter for using flat mount brakes on a post mount fork?
 

bikingdad90

Veteran
@Twilkes for ISO mounts (sideways ones) which convert to post mount so use 4 screws to attach the caliper then you are correct.

I believe you can get converters from post mount to flat mount but one that does two jobs.
 
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