bike seatpost rack - angled for seatpost
thingiverse
This is my second attempt at designing the ultimate heavy-duty seatpost for my full-suspension mountain bike. My previous try can be found here: http://www.thingiverse.com/thing:1478176 I've taken a fresh approach, factoring in the crucial angle of the seatpost this time around. A sturdy brace now supports the frame just below the seatpost, allowing it to handle heavier loads with ease. In my case, I'm planning to install two 36-volt 20-ampere hour LiFe battery packs and a 72-volt motor controller for an e-bike setup. Those LiFe batteries weigh around 36 pounds combined, so this rack needs to be exceptionally robust since it can't rely on the back axle due to the full suspension of the bike.
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