You may have to ‘micro trim’ the indexing on the rear mech via the shifter to get a perfect skip free shift too. ![]() Initial adjustment involves checking chain length for your bike on the SRAM index and then setting the angle accordingly. There is some, but not as much as previous mechs. Presuming that saved the mech from being destroyed, you’ll then need to reset it before you can carry on. If you hit it hard enough from in front it will slip and rotate backwards to take the impact. Once you’ve set the correct mech angle using the printed alignment checker and correct chain length and cranked it into place at a hefty 35nm of torque, the mesh won’t normally move. The axle threads through the Full Mount hardware, but that sandwich clamps onto the frame separately so nothing moves. If the mech is attached to the axle will it fall off when I remove the wheel? To be honest, it’s quite a good demonstration (I nearly said ‘flex’ but it’s actually the opposite) but there are much better things to stand on for dusting ceilings, grooming giraffes or reaching in high shelves in newsagents. If you’re very old like me you’ll remember that Tonka Toys did the same with a baby elephant and Kirk Precision drove over one of its magnesium bike frames on Tomorrow’s World too. It’s a sales gimmick to show how tough the new Full Mount is. Why have I seen so many people standing on the rear mech? In contrast, T-Type mechs are locked in a single position in relation to the rear axle so everything is connected and constant in its relationship. Bent hangers are also the biggest cause of shifting issues, so to be honest I’m not going to be weeping over their grave too much. ![]() A bit of wobble or looseness in either can really affect a 12-speed system with minimal tolerance between cogs. ![]() One between the rear mech and the hanger and the other between the hanger and the frame. Its beef with hangers is that there were a huge amount of different types, but also that a hanger adds two potentially inconsistent interfaces. It has a track record of killing well-established features too, most notably front derailleurs, multiple chainrings and cable operated shift systems. SRAM has been a deliberate disruptor since its first cork-covered twist grips appeared in the 1980s. ![]() What did rear hangers do to upset SRAM so much? Nope, the new cassette fits onto a standard XD freehub driver so any existing SRAM compatible wheel works fine. Less handily though, at the time of writing it doesn't seem to be particularly up to date. If you're unsure if your bike has a UDH hanger or not, SRAM has put together this handy list (opens in new tab)of bikes that run it. I wouldn’t be surprised to see some aftermarket companies trying to create aftermarket options for popular older bikes though. You’re less likely to find it on steel and titanium frames, or budget alloy bikes and anything older than three years won’t have a UDH. Because they knew they needed to as something big would eventually depend on it, most mainstream bikes made in the last two to three years have adopted that standard already though. The ‘Full Mount’ T-Type rear mechs will only fit bikes that use a SRAM UDH (Universal Derailleur Hanger). T-Type mechs only fit to UDH hanger standard bikes (Image credit: GuyKesTV) Do I have to have a special bike to fit it?
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