Finally got around to fitting the Mahle SP1 battery entender to my ebike.
The cage would position the extender 2-3cm lower if I used the seat tube mounts, but I thought using the down tube mounts would better balance the ebike, because the ebike as supplied is quite rear heavy due to the rear hub motor. But I wasn't sure the cable to link the extender to the ebike charge port would reach, if I used the down tube mount.
Cable reached fine, happy days, so go to put bottle back in the seat tube bottle cage...
It won't ****** fit, the SP1 blocks the way for the bottle to sit in its proper ride position, didn't see that coming at all!
So only place I can see as practical bottle cage mount is underside of top tube, which positions the bottle awfully horizontal while riding and surely liable to jump out when I catch any bumps on the road?!
Edit: Thought I'd come up with a solution to make seat tube bottle cage useable, by mounting the SP1 cage higher with the various cage bolt holes it has. But mounting the SP1 cage high enough to use the seat tube bottle cage leaves the SP1 cable/plug ~1cm from the ebike charge socket.
Edit2: Decided to try fitting SP1 cage to seatube instead, where there is the obstacle of the front mech band affecting how the lower part of the cage mounts. Annoyingly, the highest set of cage bolt holes don't allow the lower bolt to screw into the thread, which would eliminate contact between the cage and the front mech band! The second highest bolt holes screw in, but I'm not terribly happy that the very bottom of the SP1 cage touch the front mech band and probably affects how the torx lower cage screw engages with the seat tube compared to the upper torx cage screw.
But at least I can now use the down tube bottle cage for a bottle!
What an absolute faff for simply mounting a cage to the bike, over an hour, on what has become a surprisingly nice day outside worthy of a ride!
