Description The Sturmey Archer Dynohub HDS22K is a 6V, 2.4W dynamo hub suited to disc brakes. Sturmey Archer have been making internally geared hubs & dynamo hubs for decades. And some would say this makes them the best! Their dynohubs are heavy duty & reliable for years of riding. We think of this is as the Land Cruiser of dynamo’s, it’s hard-wearing & won’t let you down. Sturmey Archer Dynohub HDS22K Specs Front hub 6 Bolt Disc brake 36H 100mm OLD Nutted axle Anodized alloy finish – Silver A356 Aluminium Hub Shell Sealed catridge bearing Weight – 835g Supplied with nuts, washers & non-turn washers for installation. Check out the complete spec list from Sturmey here. And for instruction manuals if you’re building your wheel at home are here. WHEEL BUILDING USING DYNAMO HUBS Considering a dynamo conversion? We can help! Abbotsford Cycles has been hand building wheels for 25 years & we are passionate about the process. Give us a call, email or text… or just drop by our RICHMOND BIKE SHOP and we can talk wheels.