Vitus bikes zenium sl disc bike superlight 105boasting disc brakes and ample tyre clearance you can run up to a 30c tyre the zenium sl has its widest appeal yet choose between road gravel or both on this lightweight and durable aluminium bike also featuring a full carbon disc brake specific fork with 15mm through axle shimano 105 groupset and hydraulic disc brakes fsa vision team 30 disc brake wheelset and vitus own finishing kit super light 6066 t6 triple butted alloy frame with