SteveF
New Member
Hello all,
I was an early adopter of an eMTB five years ago with a BH neo jumper. Its old tech now, motor in the hub, but it had a brilliant torque sensor, Dutch invention, built into the chain stay. The moment tension on the top chain line was detected it switched the motor on. I've ordered an S Works Levo to upgrade. One of the questions I asked the dealer was about the time lag for the motor to switch on. This is important when riding technical trails that have an incline and often you have to stop momentarily to get balance, keeping your feet on the pedals, then get going again. Another instance is stopping on a steeper incline for whatever reason, then getting enough momentum underway to get pedal assistance again. With the chain stay torque sensors this isn't a problem, and if you don't want the instant response for any reason then you only need to lightly tap a brake lever to switch off the motor.
The response to my question from the dealer was, yes, as soon as the chain is tight the motor switches on. However watching youtube reviews in the UK, (2017 models) this dosen't appear to be the case and the major gripe the reviewers had is that it took a half to one pedal stroke for the motor to switch on. Probably because the switch is based off the magnet in the wheel hub and the wheel needs to revolve at least half a turn to get a response. This is a concern because if you get stuck on a narrow uphill singletrack with stones, rocks, ruts etc., its going to be annoying to get underway again. Maybe they have resolved this with the 2018 motor upgrades?
Any comment on this issue would be gratefully recieved
Best
Steve
I was an early adopter of an eMTB five years ago with a BH neo jumper. Its old tech now, motor in the hub, but it had a brilliant torque sensor, Dutch invention, built into the chain stay. The moment tension on the top chain line was detected it switched the motor on. I've ordered an S Works Levo to upgrade. One of the questions I asked the dealer was about the time lag for the motor to switch on. This is important when riding technical trails that have an incline and often you have to stop momentarily to get balance, keeping your feet on the pedals, then get going again. Another instance is stopping on a steeper incline for whatever reason, then getting enough momentum underway to get pedal assistance again. With the chain stay torque sensors this isn't a problem, and if you don't want the instant response for any reason then you only need to lightly tap a brake lever to switch off the motor.
The response to my question from the dealer was, yes, as soon as the chain is tight the motor switches on. However watching youtube reviews in the UK, (2017 models) this dosen't appear to be the case and the major gripe the reviewers had is that it took a half to one pedal stroke for the motor to switch on. Probably because the switch is based off the magnet in the wheel hub and the wheel needs to revolve at least half a turn to get a response. This is a concern because if you get stuck on a narrow uphill singletrack with stones, rocks, ruts etc., its going to be annoying to get underway again. Maybe they have resolved this with the 2018 motor upgrades?
Any comment on this issue would be gratefully recieved
Best
Steve
