Race Face commissioned ODI, originators of the lock-on grip, to produce their bolt-on Diabolus bar holders.
The proﬁle is unusual in that it bulges towards the centre. This ﬁlls your palm to give better support and more grip, yet still provide that slim proﬁle feel with the smaller diameter outer grip.
The result is a very comfy grip that can reduce arm pump by better supporting your hand. They aren’t cheap but replacement grips without the clamps are just £11.95.