TRP - Spyke Mechanical DiscTRP SPYKE MECHANICAL DISC A mechanical disc brake for mountain bikes and fat bikes that offers excellent performance and is easy to set up. The Spyke is a dual sided mechanical calliper where both pads actuate providing even and precise clamping force. This results in even pad wear and easy pad adjustment with the addition of a barrel adjuster. No longer is adjusting the whole calliper necessary as the pads wear. All of this in a 169 gram (per