Another silly question

[Sylv]

[img]http://www.cyclepath.ca/products/usrimage/cat210.jpg[/img]
What on earth are those small black bolts (on the far left) for?

[Marek]

Are they there to rub against your rim when the brake pad is low so you know when to change the pads?

[Robh]

[quote="Marek"]Are they there to rub against your rim when the brake pad is low so you know when to change the pads?

[Sylv]

Right, if the answer doesn't come from the late Sheldon, it has to come from good old bikepro.com

[quote]SHIMANO DURA-ACE 7402 SIDE-PULL BRAKESET

This is a precisely built, highly polished, brake set using conventional side-pull calipers. The calipers have a thrust bearing installed to reduce friction at the pivot bolt. There is a rotating cam quick release so the brakes can still be used if the wheel goes out of true while on a ride. It uses low profile brake shoes, the pad holder has a tire guide for quick wheel installation . The convenience adjusters have rubber grippers on them.

SHIMANO ULTEGRA (6403) DUAL PIVOT BRAKESET

This Shimano road racing brakeset fulfills all the requirements. It's responsive and easy to adjust, thanks to the Dual Pivot system, it has the cam quick release (so you can use brakes after the wheel is out of true), convenience adjusters, light weight, and it's affordable. These are a part of the Shimano Super SLR system, the dual pivot shortens the necessary cable pull length and travel distance of the arms. In doing so it increases the actual power applied to the brake itself. The pivot bolt has a thrust bearing to reduce friction. The calipers have low profile shoes and a plastic tire guide molded into the pad holder.

[Elliot M]

surely the sticky-out wing is the tyre guide? no idea what the bolts would be for

[Sylv]

[quote]Tire Guide: Resin bumpers on tire guide prevent damage to rims if pads wear down.

[-Adam-]

So can we remove them to save a gram or two then!? lol

[Andrew G]

Does anyone seriously let their brakes wear down that far before replacing them, they do tend to be fairly important. On the conti tyres there are some wear guides but to get down that far you'd almost be through them and riding on your inner tubes!

[-Adam-]

[quote="Andrew G"]Does anyone seriously let their brakes wear down that far before replacing them, they do tend to be fairly important. On the conti tyres there are some wear guides but to get down that far you'd almost be through them and riding on your inner tubes!

[Ivor]

heh, only last night I was pondering what those were for as I was changing brake pads.

[quote]Rim Saver Tire Guide: Resin bumpers on tire guide prevent damage to rims if pads wear down.