Boardman carbon frame brake fitting.

[Gillstay]

Hi. This bike came in the smallest bits a teenager could turn it into. Now fitting the brakes and they don't seem to push fit into the frame and have a nut on the back as I would expect. There appears to be a thread in the frame which I can turn the caliper to screw it in with. Is this correct ?

 

[fossyant]

Shouldn't be, could be full of crap. You may need a longer nut to reach the thread on the calliper ?

 

[figbat]

This is a recessed mount caliper rather than the traditional nutted mount.

 

[fossyant]

This is a recessed mount caliper rather than the traditional nutted mount.

Yes most bikes have been for years, even my early 90's bikes are all recessed 'nuts' as such.

 

[oldandslow]

And secure with an Allen key, which no-one seems to have mentioned. You don't turn the caliper - just turn the nut with the key.

Available in various lengths to suit holes of differing depths. Can't remember what the standard sizes are.

 

[cyberknight]

i have 2 Boardman bikes one carbon of a similar vintage to that bike and an older alloy with the same seat stay design , there is a recessed nut in the back that you screw into which might be missing

 

[biggs682]

i have 2 Boardman bikes one carbon of a similar vintage to that bike and an older alloy with the same seat stay design , there is a recessed nut in the back that you screw into which might be missing
View attachment 825350

Or it could be seized in the frame as i had a few years back

 

[cyberknight]

Or it could be seized in the frame as i had a few years back

indeed, i found i needed extra washers between the caliper and the frame as the bolt was slightly too long to be able to tighten the nut properly

 

[Webbo2]

indeed, i found i needed extra washers between the caliper and the frame as the bolt was slightly too long to be able to tighten the nut properly

The nuts come in different lengths I’m fairly sure I’ve cut then down in the past.