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Old 04-18-20, 04:03 PM
Clipless in Coeur d'Alene
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Join Date: Mar 2012
Location: Coeur d'Alene, Idaho
Posts: 1,989

Bikes: Tandems: Calfee Dragonfly S&S, Ventana ECDM mtb; Singles: Specialized Tarmac SL4 S-Works, Specialized Stumpjumper Pro, etal.

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Eric says it works great. Both sets of cranks have their own crank torque sensors which results in each motor working just like it would on a single e-bike - according to Eric.

I suggest going to the FB Tandem e-bikes group for more info. Eric has posted a lot more photos and info, plus a video showing how the IPS works for capt and stoker. Total build weight is around 63lbs, which is awesome for a dual motor MTB e-bike Tandem.
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