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The GRX BL-RX812 Sub brake levers (interrupter levers) work because the fluid input port from the primary lever is blocked by the master cylinder piston when the sub lever is closed. The MC piston ess …

This is more common with the shift cables than the brakes, but it is possible. At the point where the cable enters the brake caliper. …

Last, Shimano will not warrant brakes used with different combinations than designed. Which means that if you choose to mix and match a brake setup for a customer, the liability is on you. … If their brakes fail, you are in a world of hurt. Great question, though. :) …

It also happens over time, and SRAM Elixir brakes are especially known to have this issue. The Guide series hasn't been bad about this so far. …

Yes, there are aluminum backed organic brake pads available for the Elixir series brakes. …

Short answer? No, it will not generally cause you a problem. This is actually a common method of parking a loaded touring bike. Don't over tension the brake lever. Remember that a hydraulic lever …

The metal "R" shaped piece is likely the brake return spring (#7,8 in the image below): If it is visible as you describe, you are likely missing a brake pad, and the spring is contacting your rotor …

The best bet for old Campy Hoods is EBay. The hoods you are looking for are the EC-R500 Silicone Rubber hoods, I believe. One set here: http://www.ebay.com/itm/Campagnolo-8-9-Speed-Record-Ergo-Shif …

The Magura RT6 and RT8 Hydraulic TT brakes have been available (if somewhat unusual) since last year. They are a solid system which is compatible with most current TT frames. …

You can trim off the lip with a sharp blade, if you do it carefully. However, I normally recommend that the lip be filed off with the flat side of a 3/4" bastard file. It's more accurate, the mechan …

These systems, when proper care is taken, can have fluid added, or hoses trimmed without rebleeding the brakes. … Closed system brakes, like most older Hayes brakes, (HFX-9, Nine, Original Hayes) can't add fluid, because the only access to the fluid reservoir is through the bleed ports. …

It sounds like your brake pads are contaminated with detergent or petroleum (oil) products. If so, you need to replace them. This is a common problem, which can be solved by washing the brake rotor …

Mineral oil based Hydraulic fluid will build up water condensation in the hoses over time. How much time depends on a lot of factors, like humidity, temperature, bike storage conditions, and similar t …

There are a number of bicycle types which use standard road rims which are designed with v-brakes or mini v-brakes. … You do need to pay attention to the type of brake lever, since most road levers and a lot of older MTB levers are not compatible with v-brakes, or at least require mini v-brakes because of the amount of …

It will prevent vibration from loosening your screws without preventing the adjustment you need for your brakes. …