Hub dyno noob

[secret_squirrel]

Hello Retrobike Massive,

Need some advice - got my first dyno hub at the weekend and just wanted confirmation that is OK.

Basically it feels like it has really rough bearings but spaced at quarters around the hub. I assume this is the gubbins for the dynamo and it normal?

The hub is brand new BTW.

 

[hamster]

You are exactly right - spinning the axle feels all wrong! It's the cogging effect from the permanent magnets in the hub.
Check it doesn't feel gritty and tight, and check when it's in the fork that there is no play. It's tough to get the bearings adjusted right (assuming it's Shimano , and they always leave the factory too tight IME).