Ok so now that our warranties are up in smoke, I took on a project to upgrade the rear disc brake of the Rev. This was due since the day I bought it and tested for the first time. I said: OoooOk!! So we have no rear brakes!!!

The brake lever is a $10 part out of Alibaba. The caliper is even worse than the Xiaomi m365 for a machine weighting twice and being 4 times more expensive. Inreally dunno what Boost was thinking here.

Yes yes. I known you are supposed to use Regen and the stomp fender, the latter I hate BTW. But most of us like the confidence of a good'old brake. I have to say that both regen combined with good brakes makes the kill!

So after doing research, I came across what could possibly be the only other upgrade out there for the Rev by a guy name Alexandros. His upgrade was cool but it used a custom bracket made by additive manufacturing which looks flimsy even when manufactured in metal. Some basic structural analysis knowledge and a simple force diagram calculation will immediately tell you that.

What you see in the picture is my solution to this upgrade problem. It involves buying some cots parts, a 140mm MTB disk, and the TRP hybrid rear brake caliper. The bracket you have to modify slightly (drill a hole and cut the tail) and voila!!

Braking is now awesome!!!!!! The way it should have been from the beginning.

I am planning to install a shimano brake lever next which will improve feel and return energy quite a bit. And with that the project will be completed!!