Advice for 20" hubs.

Benjahmin

Esteemed Pedelecer
Nov 10, 2014
1,280
166
64
West Wales
#61
In the kit of bits for the controller, there is a black 2 pin plug with a loop of blue wire in it. The only corresponding plug on the controller has blue and black wires in it. It is the only one that is unlabelled on the S06S details and isn't mentioned at all on the downloadable diagram.
Anyone know what it's for? Is it a derestriction loop?
 

Benjahmin

Esteemed Pedelecer
Nov 10, 2014
1,280
166
64
West Wales
#62
Now that the lcd has been set to wheel size I can get an accurate take on speed. On the stand and using throttle, the max speed obtained is restricted by the max speed setting. Currently it's giving 20mph which'll probably give around 18mph on the road. Although the motor seems to drive all the way up around 40-45kph when the setting is at default of 72kph (way too fast for a 20inch wheel bike - I would thinko_O).
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
6,951
374
55
West Sx RH
#63
The Bleu loop is for cruise function.
Original KT's I think only have the derestriction wire which is a single SM1 connector with a white wire.
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
808
306
Basildon
#64
Now that the lcd has been set to wheel size I can get an accurate take on speed. On the stand and using throttle, the max speed obtained is restricted by the max speed setting. Currently it's giving 20mph which'll probably give around 18mph on the road. Although the motor seems to drive all the way up around 40-45kph when the setting is at default of 72kph (way too fast for a 20inch wheel bike - I would thinko_O).
45 km/h is the speed you get with a 328 rpm Q100 in a 26" wheel. It's not possible to spin that fast in a 20" with a 36v battery. There must be something wrong with your wheel size setting unless you recorded that before setting the wheel size.

The blue wire loop is for cruise control. Do not connect it. It's for stupid guys that don't fit a pedal sensor, and it can be very dangerous if you don't know what you're doing.
 

Benjahmin

Esteemed Pedelecer
Nov 10, 2014
1,280
166
64
West Wales
#65
Finally, the photo's.
Torque bracket finally arrived and fitted, road test complete. Had to fit the torque bracket on the gear side, just wouldn't go on the other. However the kick stand is mounted over the axle and acts as a second bracket, not a very substantial one, but it's there.
Despite setting the maximum speed at 25kph, the motor is giving a road speed of 17-18mph on pas5, and around 20mph on the throttle. Using a handful of throttle and pedaling to take of it is far too easy to lift the front wheel on this short wheelbase bike, bit scary.
Motor is pretty much silent and it's not easy to tell when it cuts out.
My neighbour is well chuffed .

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Used spiral wrap to keep cables tidy.

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Handlebars have stayed nice and tidy.
I am not responsible for the mohican!

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Torque bracket just wouldn't fit any other way - believe me I tried.

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Kick stand was part of the reason I couldn't get the bracket here.
Yet to see how effective the spiral wrap is over time.
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The hidden wire brake switch is really neat and works well (make sure the cable is facing away from the brake). I manged to get the controller in the front of the battery mount, hence all the cables going there.
The key is a lock only, not a switch.
Had to grind the peddle boss, by about 3mm, to fit pas disc ( aluminium doesn't grind very nicely does it - clogs up the disc?). It's a bit of a dogs dinner 'cos I couldn't get it square, so has a bit of a wobble. But it works smoothly.
The only cable I had to extend was the throttle, easy 3 wire cut in, hidden under the frame and heat shrunk.
Pleasing job to do, got his wife's to do next - maybe after Easter.
 
Dec 1, 2016
135
7
68
Chicago, USA
#66
I like how you hid the controller inside the battery!

It took me three years to discover what could be done with spiral wrap. I use to throw it away, Then I became a devotee, Bought 30 feet of it for like two dollars.

Cut the PAS Disk next time? I do.

Yes. Wheelies. Not so much on mine unless I have 48V battery, but it will lift the wheel on 36V ascending a steep hill with hard pedaling and motor assist. That can be scary.

One thing is missing. A good bell!
 

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