Nissan is our biggest hub range at 84 kits. B-G stop at the R33 Skyline and the 350Z is MOMO only. Here is what fits what.

Nissan is our biggest hub range at 84 kits. B-G stop at the R33 Skyline and the 350Z is MOMO only. Here is what fits what.

The five decisions behind a race helmet in the order they arrive: standard, full face or open face, shell material, intercom provision and size, with the full price ladder from £309.60.

OMP now lists ten plumbed-in fire extinguisher systems and the names look like a random string of letters. They are not. Cameron decodes FAL, SAL, SST and the 6 and 7 suffix, and works out what an alloy bottle actually buys you.

The three decisions behind an FHR: the 20 or 30 degree recline angle, the collar measurement that sets your size, and the posts, tethers and clips that connect it to your helmet.

A customer asked whether he needs a 6x74mm boss for his Personal wheel or a spacer. The answer depends which M3 he has. Here are the two bolt patterns, which hubs are drilled for both, and the two spacer sizes that will not do the job.