-
Was just riding along™ and went down a hill, applied the brakes and heard a loud crack.
20" wheel on an urban arrow cargo bike (loaded with 40kg). Wasn't going at a crazy speed at all.
And was this the hubs maiden voyage? How old is it? I imagine it has been subjected to a lot of use and abuse in its life. If not could be a faulty part.
Have seen a couple Rohloff flange breaks on those bikes as well.
-
What do we reckon went wrong here, squad?
The usual mix of things. A bit of fatigue, a bit of stress corrosion cracking, a generous helping of that's effectively a fucking huge brake for a bicycle at I'm guessing ~40% of the tyre rolling diameter it's equivalent to running a 300mm rotor on a 29er. On a normal solo that's moot because you endo before you can use all the brake, but on a cargo bike with the front wheel much further forward of the centre of gravity, you can brake up to the limit of traction.
You are reading a single comment by @Calumonwheels and its replies.
Click here to read the full conversation.
MCamb
gbj_tester
@Calumonwheels
What do we reckon went wrong here, squad?
Was just riding along™ and went down a hill, applied the brakes and heard a loud crack.
20" wheel on an urban arrow cargo bike (loaded with 40kg). Wasn't going at a crazy speed at all.
I mean my best guess is that these hubs just aren't rated for this kind of load especially with how the flange seems to have sheared off the rotor side.
1 Attachment