I upgraded my M20’s brakes to the 8120 XT’s. It wasn’t as easy a swap as I’d hoped since there is way too much tension on the brake hose where it bends above the motor to just attach the new hose to the old and pull it through the frame. I had to drop the motor to fish the new one through. I managed to do it without pulling the chain ring by grinding an Allen wrench down to fit in the space between the ring and bolt.
Once open and with the battery pulled you can see there isn’t any channeling in the frame, the cables and hoses just pass through the space above the battery.
While I had it open I ran and connected the wire from my Lezyne Macro 1000 headlight at the same time. Of course that still won’t work until I find a shop with the ride tube pro software to activate the light power output on the motor (it‘s default setting is always off).
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