New To 'Road-Discs' Advice Required, Please

[Richard A Thackeray]

I've just had a new Ribble delivered
https://www.cyclechat.net/threads/new-bike-arrived.215425/

It's on hydraulic Tiagra, Listed on order. as; Shimano RS505 STI / Hydraulic Disc Brake Set w/RS785 Calipers
Discs being stamped as; TRP 6J


On moderate braking, not heavy, just to lose speed reasonably quickly (& on the flat) there's a noise like a freewheel ratchet - particularly from the front

Is this normal, or is it just 'bedding in'?

Thanks for advice, in advance

 

[Pale Rider]

All discs can squeak and squeal a bit, particularly - but not exclusively - in the wet.

A ratchet noise doesn't sound right.

It might be bedding in which, incidentally, is done by a series of firm stops from speed to a standstill.

Opinions vary as to the worth of deliberate bedding in, but there's no harm in doing it - safely, of course.

 

[Richard A Thackeray]

Thanks

That's the closest approximation of the sound, I can think of

Plus, what are these, that were in the bits-box?
Adaptors for different sized discs, or mechanical calipers???

 

[Pale Rider]

Thanks

That's the closest approximation of the sound, I can think of

Plus, what are these, that were in the bits-box?
Adaptors for different sized discs, or mechanical calipers???


View attachment 341972

It's a disc brake calliper mount adaptor to allow post mount callipers to be mounted to side mount frames.

Why Ribble has supplied a pair to you is a mystery, given your bike is ready built.

All I can think is the brake kit comes with them, and Ribble, quite reasonably, have sent you everything you've paid for.

 

[StuAff]

Thanks

That's the closest approximation of the sound, I can think of

Plus, what are these, that were in the bits-box?
Adaptors for different sized discs, or mechanical calipers???


View attachment 341972

Adaptors for fitting the brake callipers to post-mount frame mountings. Clearly not needed.
[Edit: missed @Pale Rider had already answered this]

 

[Richard A Thackeray]

Thankyou

It may get some bedding in, on the hills tomorrow, as I might got to watch the Wakefield Triathlon Club hillclimb, at Milhouse Green (to the west of Penistone, on the A628)

 

[Pale Rider]

Adaptors for fitting the brake callipers to post-mount frame mountings. Clearly not needed.
[Edit: missed @Pale Rider had already answered this]

Mind, I think I may have got my post and side mounts mixed up.

Either way, the point is made.

 

[rusty bearing]

Check that the spring between the pads hasn't got a bent leg or is not seated right, that would give you that sort of noise.

 

[Richard A Thackeray]

The front disc is slightly loose, not enough to (seemingly) affect braking, but it can be moved by holding it, & the wheel - just enough to be feel-able

Torx-drivers & Loc-tite, I believe?