Yellow Saddle
Guru
- Location
- Loch side.
What gearing system do you have? Cassette? Internal gearing? Enviolo variable? What size are the tyres and are they properly inflated?
First E Ride
- Thread starter Chislenko
- Start date
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What gearing system do you have? Cassette? Internal gearing? Enviolo variable? What size are the tyres and are they properly inflated?
ebikeerwidnes
Guru
- Location
- Z’ha’dum
Good point - really should engage my brain before typing!
but on that point - why the drag???
surely the back wheel on a mid motor bike is just a normal back wheel?
Mike Ayling
Veteran
- Location
- Melbourne Downunda
My ebike conversion had a sensor that applied the rear brake when I stopped pedalling
I got the shop to disconnect it!
I got the shop to disconnect it!
sleuthey
Legendary Member
- Location
- South Gloucestershire
wiggydiggy
Legendary Member
That's the closest thing to a logical explanation. Even if your not actively back pedalling if that system is broken in some way it might lead to unexpected braking.
OP
OP
Chislenko
Veteran
I reckon that is it in a nutshell.
Even if you don't actively back pedal one may, and I know I do it habitually on a normal bike, back rotate slightly to get in the most comfortable position for freewheeling.
Edit: Now I know why you are called sleuthey 😊
Slick
Guru
Maybe its a Trek thing then as I can definitely feel the motor drag when going downhill well above the cutout speed.
OP
OP
Chislenko
Veteran
Yes, the only time I got rid of this feeling was by turning the motor off altogether.
Just slightly off tangent, I always ride a road bike, but as this was a challenge from a fellow holidaymaker, we hired mtb's.
Totally different sensation on the fast downhills with the wide bars and differing seating position etc. I was lagging well behind (he is a mountain biker) I didn't feel confident at all!
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Slick
Guru
I tried that, but I can't honestly say I noticed a huge difference.
I mostly ride a road bike as well, the Trek is just for fun but I have taken it out with others on their road bikes and I'm left way behind on steep descents.
ebikeerwidnes
Guru
- Location
- Z’ha’dum
Hmm - optionally
wonder what that means??
could be a factory fitted thingy
or even a software setting
still - gievn how it is connected to the wheels - not sure how it can work
surely it would need some sort of connection to the freewheel or something??
so possibly something that depends on the rear wheel fitted in that country
anyone any better ideas than me making it up???
Yellow Saddle
Guru
- Location
- Loch side.
The most obvious guess would that there's a standard backpedal drum brake on the back wheel.
sleuthey
Legendary Member
- Location
- South Gloucestershire
An option to turn on or off in the LCD display
Doubt it. It says a brake so I'd go with @Yellow Saddle comment above.
I've never experienced anything like that on 2 rear hub drive and 2 mid drive bikes. The geared hub motors have a very small drag you can't even detect when riding. You can only notice it when spinning the wheel on a stand and it runs down slightly quicker. The mid drives have no difference at all due to having a freewheel type ratchet in the bottom bracket/motor area.
What you do notice especially on the Bosch motor eMTB is the contrast between assist on and off due to the weight of the bike, i.e it's really hard work to go above the assist speed unless downhill.
What you do notice especially on the Bosch motor eMTB is the contrast between assist on and off due to the weight of the bike, i.e it's really hard work to go above the assist speed unless downhill.
