REVIEW: QR-E 250W ELECTRIC BOOSTER BICYCLE MOTOR AND B60i AND B70 BATTERY

[3dxl]

Do you think the Pro would've made a big difference for you?

33% higher rated power sounded nice but not necessarily game-changing to me - I was also interested in the regenerative braking. Brake overheating is a hazard for tandem bikes - with double the weight on the same two wheels and rim (or disc brakes, I gather) brakes - on long/steep enough hills. Heck, just slowing sufficiently with only the canti brakes can be dicey on a downhill in the rain.

And actually my ancient (25 years?) tandem already has a front-wheel drum brake to assist with downhill braking. But that comes with a few compromises, and I feel like the regen braking could perform a similar function if I want to swap out the drum brake for a simpler, lighter hub.

As a guy who ride fast daily and brakes a lot on Qiroll Pro down the hill don't put 100% trust on regen braking to slow you down completely especially on heavy bikes. Pros: Its slow down "linearly" and recharge back the battery pack. Cons: It doesn't slow down heavy bikes above 20kg especially going downhill and won't be efficient on wet road with stock friction tape. You'll still need physical brake lever to slow down the bike down even with regen braking activated.

 

[cycleman]

I just went for E-Switchy conversion kit.. seems to be the easiest installation out there. The 3lb Battery looks like a water bottle and that 250W is pretty quick.. Plus i like the sleek and clean design, only one cable to connect and off we go!