Monday 2 October 2017

The curse has returned...

So over the last couple of months I have noticed a "pulsating" feeling coming from Bumble B's rear wheel. I knew this was from last time my rear rim had worn out and was basically breaking though. But this rear wheel is just over a year old and shouldn't be wearing out so quickly, something was afoot....

I took it to my main man at Mamachari to check out. He trued the wheel for me but found something odd which he couldn't explain. Basically the brake surface was pushing out in odd places on different sides which he couldn't explain and his never seen anything like it. I had another rear wheel on order already so was just waiting and would swap it out. Told him I would have a closer look at the wheel to see if I could spot anything usual about it and report back. I mentioned that the last Velocity AeroHeat rim had a huge crack down the middle which you wouldn't see if the yellow rim tape was in place and then the light bulb idea came to us at the same time. Maybe the AeroHeat rim at split again and was wondering why.

Our theory is that under the extreme pressure of 100psi the Marathon + tires needed as well as my weight may have pushed it to its limit and over time it developed cracks which just got worse over time. Even though there is no mention of max tire pressure for these rims.

I finally got the replacement wheel from Brilliant Bikes (god damn courier didn't actually deliver to The HiVE but left it at the local courier drop off without leaving a "No one was in" card)

I took a very close too at the troubled rear wheel and our theory was right. The AeroHeat Rim had split again if you looked very closely. You can just about make out the crack developing. Not as bad as the first Velocity AeroHeat rim but I caught it much earlier than before.

2nd Velocity AeroHeat rim (Apr 16, 2016 - 2 Oct 2017)
I also found where the rim is joined it had split but I have a feeling that was from me taking the Marathon + tire off as its pretty new and tough to remove from the wheel. No way me and Bumble B's surgeon would have missed that split for damn sure.

2nd Velocity AeroHeat Rim (Apr 16, 2016 - 2 Oct 2017)
2nd Rear AeroHeat Rim:

Born:     Apr 16, 2016
Died:     Oct 2, 2017
Mileage: 3,453.98 miles

New Brompton Black Wide Range Sturmey Archer hub, looking all sexy in proper black which is what I've always wanted.

So Bumble B is back up to full strength again. WOOP :D

till the next ride, bee safe.....

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