While we don't have a frame adapter bar that by itself has a weight capacity of 70-lbs, we do have the:
-Hollywood Racks Bike Frame Adapter Bar for Women's and Alternative Frame Bikes # HRBA-PRO which has a weight capacity of 35-lbs, however when paired with the Hollywood Racks Sport Rider SE Bike Rack for 2 Electric Bikes # HLY84FR the capacity jumps to 80-lbs.
If you're interested, this bike rack is also capable of carrying two e-bikes weighing 80-lbs each, and maximum tire width of... view full answer...
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