MRP bones, it's the system with a rotating plate, outer, and a fixed plate, inner. the fixed plate is connected to a boomerang that also holds the rollers. (only different to the standard system, system 2 if i remember [the non-elevated chainstay one] in that it's black and comes with bb and cranks)
The fixed plate is connected to the boomerang at three points. The points are screws on the drive side of the plate going through the plate, and screwing into a 'tube' that is circular and smooth on the outside, with a thread on the inner surface of the tube that obviously goes with the screw. All three points the same. you can adjust how far the inner plate sits from the chain/ring but sliding the shafts along through a loop that has a grubscrew incorporated in it. One of those shafts has come loose and dissapeared.
(so basically the pice of metal you grind the grub screw into to hold the inner plate to the boomerang)
Anyone know where i can get one? It's around 15-20 mm long, and 5-10 mm in diametre.
cheers. :?
The fixed plate is connected to the boomerang at three points. The points are screws on the drive side of the plate going through the plate, and screwing into a 'tube' that is circular and smooth on the outside, with a thread on the inner surface of the tube that obviously goes with the screw. All three points the same. you can adjust how far the inner plate sits from the chain/ring but sliding the shafts along through a loop that has a grubscrew incorporated in it. One of those shafts has come loose and dissapeared.
(so basically the pice of metal you grind the grub screw into to hold the inner plate to the boomerang)
Anyone know where i can get one? It's around 15-20 mm long, and 5-10 mm in diametre.
cheers. :?
