The InI Rear Hub is the core Level offering, and at its heart is Scott's knuckle interface between hub and cog. The special cog fits snugly over lugs projecting from the hub shell and is then secured with three TorX bolts. This enables a very positive lock while still allowing you to swap sprockets with a tiny pocket driver. Whilst superficially similar, is a quantum leap over the ISO 6 bolt designs, requiring only half the fastenings (read - half the time twiddling the bolts come changeover time) and the ability to take smaller cogs. Also remarkable is the hub's respaceability. If you decide to change spacings in future, you can take your Level with you. Using handtools, you can reconfigure your Level for a 120 or 135mm bike in a few minutes.

Don't for a moment think that it is all about whizzy technologies crammed into a generic hub, oh no. The hub shell is a machinist's work of art, with a slightly organic shape with the flanges dished inwards to align with the direction of force.