Join Date: Aug 2006
Location: Southern California
Bikes: Several bikes, Road, Mountain, Commute, etc.
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I looked at the specs for the Novara Fusion and it says "Shimano Alfine 8 speed internally geared / Shimano disc brakes" so yes, a bit more fiddley than a normal set up but not all that bad.
I have a Shimano Nexus hub on my commuter (also 8-spd.) and if it's similar, the first step would be to remove the shift cable. Step two would be loosen axle nuts (mine are 15mm, but check first!).
Step 3 would be remove chain from rear cog, then for Step 4 you should be able to pop the wheel out.
When replacing the wheel, be very careful to align the brake disc between the disc brake pads, while at the same time (pretty much) placing the chain back on the rear cog and aligning the rear axle in the dropouts.
Make sure the wheel is straight between the chain-stays and seat-stays and that you have adequate (but not over-tight) chain tension before re-tightening the axle nuts. Finally, replace the gear cable in it's little nook. On my Nexus there is a lever point whereby you can relieve the tension on the shift cable, which makes it easy to remove or re-install the shift cable nut/bolt . . . hopefully the Alfine has something similar.
So, overall, a bit fiddley in that you really have to watch several different bits when re-installing, but quite do-able and not all that time consuming.
Rick / OCRR