Just to clarify question ref pedelec & cutout omission

[Pob]

Hi I have sort of asked this but is there any technical reason why I can't just run without pedelec & cut-out brake levers?

I don't want to use either on my electric kit. Apart from legalities there is no damage done to a brushless motor by using throttle only I assume? Is it advisable to use electric motor after first starting the bike moving by manpower to avoid strain on motor? The cut out brakes is just a safety precaution of course.

I have a 8fun brushless front hub motor with 3 wires and no hall sensor. I have a twist throttle and a li-ion 9ah 36v battery. It is a sunlova kit on my Trek mountain bike.

Thanks

 

[Deleted member 4366]

It'll work fine. I ran mine like that until I made the other mods to the levers and BB. It would be better for motor durability if you could give it a bit of a start with the pedals and don't use full throttle from a start. Of course it's not legal, so you always run a small risk of related problems I guess you've got quick-shifters with the integral brake lever. I got one of these off Ebay and find it much easier to use than quick-shifters, but I lost bottom gear from my 8 spd cassette. Then you can fit a brake lever to the rhs:
Shimano 7 Speed Gears Thumbshifter Right Hand TX50 SIS on eBay (end time 01-Jan-11 19:44:31 GMT)
If you have problems fitting the pedal sensor, it was discussed here:
http://www.pedelecs.co.uk/forum/electric-bicycles/6948-sensor-required-3.html
Trevor Hollaway found some way of thinning it down to make it fit, but I couldn't really understand what he had done. If you read this Trevor, could you explain further?

 

[Pob]

Thanks for the reply - very much appreciated.

 

[flecc]

Regarding your edited out query on responses Pob, I think it was partly the timing, the 22nd just before Christmas and many struggling against adverse weather to get everything done, plus a not very big overall membership and not many online at any one time, just 5 at the moment, plus many with pedelecs which don't use or need cut-outs so no relevant experience to post with an answer.

On the 22nd I was de-icing the car, having two teeth pulled out (by a dentist ), collecting a prescription, appearing as a witness at a Crown Court, collecting some official documents and running around getting signatures, doing the last pre-Xmas shopping and wondering where all the time had gone.

Personally I don't bother with cutouts since healthy bike brakes will easily overcome the limited e-bike power if the motor sticks on. Many though are too nervous to go without and some use the cutouts routinely to avoid rolling off the throttle when braking.

As an experienced motorcyclist I routinely roll off the throttle anyway, and as an experienced cyclist I avoid wasting energy by braking.
.

 

[Pob]

Yes I edited my post because I felt it was a little unfair so scrubbed it
Sorry to hear about the dentist - I hate dentists

Bad timing I suppose then yes

 

[flecc]

Sorry to hear about the dentist - I hate dentists

Mine, Simon Mooi, is a good'un luckily, brilliant technique so I've never needed injections for drilling and fillings for example.
.

 

[aseb]

Hi I have sort of asked this but is there any technical reason why I can't just run without pedelec & cut-out brake levers?

I don't want to use either on my electric kit. Apart from legalities there is no damage done to a brushless motor by using throttle only I assume? Is it advisable to use electric motor after first starting the bike moving by manpower to avoid strain on motor? The cut out brakes is just a safety precaution of course.

I have a 8fun brushless front hub motor with 3 wires and no hall sensor. I have a twist throttle and a li-ion 9ah 36v battery. It is a sunlova kit on my Trek mountain bike.

Thanks

My X-Byke came without brake cutout switches from new. The original bike needs 2 full pedal turns before the motor cuts in, later ones need one turn, and Powabyke sell an adapter so it will go on throttle only.
From what I recall some motor types are suitable for direct start, some aren't, but I can't recall the differences now. The X-Byke is brushed and can be modified to do this.

 

[Pob]

Thankyou, I have decided I am not going to be using the brake cut off switches or pedelec sensor initially. I may introduce the pedelec at some point if I can fit it neatly. I intend on not opening the throttle until I have started moving so as not to put too much "strain" on the motor or circuitry.

I have been riding motorbikes for nearly 35 years so I am quite used to the idea of a throttle and brakes.

I live in Derbyshire and it is quite hilly so the bike is going to be used as transport but also to get fit with motor assistance on steep hills (got a bad back)

I will take photos when I have done it (only started messing about with it the other day)