Brake touching frame mount

[AverageJoeMTB]

Hi all,

Anyone seen this before. Boost pro 4 hub (148) all stock and the disc is just touching the caliper mount.

It's bloody odd. I remove the wheel quite often and this just started today. Checked the hope spacers are installed. Reseated the cassette no change. Disc is straight and true. It's almost like I'm missing a spacer but I've never seen one.

20190717_211931.jpg

20190717_211937.jpg

 

[Mikerb]

.....maybe the caliper mount is bent?

 

[Benson]

Is the rotor mounted the right way round to the hub? Is the rotor bent?

 

[AverageJoeMTB]

Cheers both, Rotor is straight and mounted correct way around. It's been fine for ages but I do take the wheel in and out quite often and do remove the cassette at times to give it a good clean but I can't see the cassette side being related as its the rotor side that's touching.

I borrowed a wheel off a friend also using a pro 4 hub and the rotor clears. Something must be missing from the wheelset but I can't see what. On the rotor side there is just an insert spacer and nothing else. Its very strange indeed. I'll have a better look on the weekend. Worst case I'll throw in a washer to push it out by 1mm.

 

[AverageJoeMTB]

Anyone else able to check how close theirs is?

This is the gap with the other wheel installed. It's still bloody close but does clear.

 

[inwoods]

 

[Gary]

looks like you have the wrong non drive side end cap installed on the hub axle.
inwoods top pic shows the correct boost 148 end cap quite clearly

 

[AverageJoeMTB]

Massive thanks for the pictures, shows me where it should be. Similar Hubs and Brakes to me too so a perfect example.

looks like you have the wrong non drive side end cap installed on the hub axle.
inwoods top pic shows the correct boost 148 end cap quite clearly

That's a good spot. That rear wheel has always had those end caps and they are identical both sides and worked fine for ages, maybe I did pick up the wrong one at one point as I do have a few end caps. I'll see what others I have. Should they be different drive side to brake side do you know?

 

[Gary]

Yes

 

[AverageJoeMTB]

Yes

Somewhere I have a wheel that's too wide then ?

Cheers, I only feel like a bit of a prat for not noticing this sooner.

 

[AverageJoeMTB]

Can we pretend we didn't have this conversation ?

 

[Gary]

hahah

looks like someone could do with soft jaws for their vice