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Is this true and there any way around it? I don't want to go crazy speeds but 30km/h just feels better, especially given that a lot of roads around here are 20mph limits
This is probably true to ensure the manufacturers aren’t liable if the eBike is used at an illegal speed. The limit in the UK is still 25kmh or 15.5mph and after that you’re breaking the law if it’s used on the roads.
I’ve a GoCycle, and alas even though it’s 16.5kgs and only has 3 gears, I can easily pedal it faster than the software will legally allow the motor to kick in. I’d love it to go faster, but at the moment you’re touching dodgy ground if you have an accident or something bad happens.
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It does on Bosch since about 2013 I think, 2020 motors are harder again to get around if at all possible. The log they talk about is more to do with motor load vs cadence vs wheel speed, it kinda works out that something has changed when the kwh per certain distance has changed. Bosch know if the motor is changed when interrogated by a main dealer/warranty interface. This is all just from what I've heard from other shops, I don't have a bosch account.
Shimano, less of an isssue, there is a battery log, which does sort of the same thing but AFAIK its a log kept in the battery, not the motor. If you use one of those wheel speed sensor 0.5x jobs, then it'll likely be obvious when the motor/battery has seen a lot of duty, yet the odometer says half the distance vs. anticipated wear.
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Muppetteer
BrickMan
@gillies
I'm likely getting a ebike (r&m packster 80).
I had a shot of a pals ebullit which was limited up to 30km/h and this felt much closer to a natural cruising speed compared to the 25km/h limiter on the Bosch CX I used in the r&m.
I spoke with lbs about tuning the motor, he said it is entirely possible but will leave an indelible and warranty voiding mark on some internal log somewhere.
Is this true and there any way around it? I don't want to go crazy speeds but 30km/h just feels better, especially given that a lot of roads around here are 20mph limits.