S40 E-wheel options????

[Boreen bimbler]

I've just started looking into electric wheel options for an S40 with thru axles. There dosn't seem many. Grin is about all I can find quickly. Does anyone have any experience in this area? I'm fine with bike mechanics but havn't a clue about anything electrical so may not be up to the job myself anyway. Any advice on this or the complications of electric much appreciated. Cheers, Tim.

 

[Henri]

Grin All Axle Motor might just be the only available hub motor for through axles. Their Cycle Analyst is also said to be very good, so maybe it's not a bad idea, to just contact them and get a whole kit from them. Of course you'll need to live with a direct drive, then. (More weight, less efficiency, rollung resistance when bot powered. But also very powerfull and reliable and able to brake regeneratively.)

Other options I see:
- T50 or older S40 for quick release axles.
- Crank motor (not sure if there are compatible ones), lots of weight in a bad place.
- Something like an Add-E. Not sure if that product can be taken seriously.
- Build your own system. (Or have someone build it ) For example with a Motor under the seat and a chain that leads to a sprocket that is bolted to the brake disk attachment on the rear hub. Those sprockets exist. The motor could probably be something out of the RC world or a normal hub motor, that also has a sprocket instead of the brake disk. Probably both can be build with a freewheel. RC motor might even be possible with a clutch. And even a direct drive hub motor could get an underdrive ratio from the chain sprockets to increase its RPM and efficiency (and even the torgue at the wheel).

 

[Boreen bimbler]

Thanks. Just the sort of answer I was after and pretty much sums up the impression I had. I'm certainly not up to building it myself. The Grin front wheel motors looked interesting but very expensive (for good reason I'd hope). I think one of theirs would be my only option though so will look into it in more detail.

I'm in Ireland so taxes can add up and you don't get s/h cruzbikes here sadly.

 

[Henri]

Ah yeah, same in Germany. And Grin is in Canada. In this forum I assume USA and that would have been closer. But Grin may be easier to get ones hands on here.

 

[marshall2389]

I highly recommend Grin products. They're high quality in a market area filled with low quality garbage. I have bought batteries, a charger, a geared hub motor, motor controller, and computer from them. All have worked flawlessly. Plus their customer support is good, a rare feature.

 

[danhunt56]

Motor

Motor,Front Hub Motor,Rear Hub Motor,S Series,P Series,ALL-IN-ONE,S Series,P Series,ALL-IN-ONE,Thru-axle Series

keyde.shop

I could have sworn I was looking at a front thru axel motor on their site a few weeks back but can’t find it now. I also don’t know the o.l.d. of the cruzbike thru axel fork. This would not be as good as a bafang hub motor on the rear but it would eliminate putting more weight at the mbb.

 

[Bo6]

Motor

Motor,Front Hub Motor,Rear Hub Motor,S Series,P Series,ALL-IN-ONE,S Series,P Series,ALL-IN-ONE,Thru-axle Series

keyde.shop

I could have sworn I was looking at a front thru axel motor on their site a few weeks back but can’t find it now. I also don’t know the o.l.d. of the cruzbike thru axel fork. This would not be as good as a bafang hub motor on the rear but it would eliminate putting more weight at the mbb.

An interesting option but the built in battery is only 10ahr and may have a limited range. If you do give it a try it'll be interesting to see how it works.

 

[CruzRider]

An interesting option but the built in battery is only 10ahr

I think this may do the trick for me, since I just need help starting. Now, if the only had a TA …

 

[RayRatke]

I have the same question as the original post - have looked at Grin but also am researching one of the friction drive motors. Just looking for something for getting me over the hardest hills. Any thoughts?

 

[Robert Holler]

Stay tuned................. thats all I can say right at the moment.

 

[RayB]

I have the same question as the original post - have looked at Grin but also am researching one of the friction drive motors. Just looking for something for getting me over the hardest hills. Any thoughts?

I'm in the same camp as yourself. I prefer friction drive motor so it can be disengaged and you are not stuck with the drag of a hub motor. Which one are you considering? I had one of the hiddenpower kits on an upright about 10 years ago and it sold me on friction drive capabilities: http://hiddenpower.co.kr/

But instead of trying to find a kit compatible with thruaxles maybe friction is a possibility? I've been lingering around the velospeeder site these days wondering if I should give its friction kit a try: https://www.velogical-engineering.com/velospeeder/technical-information/?lang=en

But these options are not cheap. I might have no option but to go for one for a Grin one myself due to some wacky local restrictions.

 

[JoFlo]

I've just started looking into electric wheel options for an S40 with thru axles. There dosn't seem many. Grin is about all I can find quickly. Does anyone have any experience in this area? I'm fine with bike mechanics but havn't a clue about anything electrical so may not be up to the job myself anyway. Any advice on this or the complications of electric much appreciated. Cheers, Tim.

Try this link

CYC Photon Gen 2

The CYC Photon Gen 2 mid-drive motor is the latest mid-drive motor from CYC Motors. Stays within legal limits (750W)

electrifybike.com

I added this to my Q45 and loving it.

 

[Boreen bimbler]

Thanks. I did look at that yesterday after seeing you put the link up. Very interesting but I couldn't see short crank options (155mm). I recently got into "pain reprocessing therapy" and it is really helping my fatigue problems so I'm not going electric for now as I seem able to lightly train again.

 

[JoFlo]

Thanks. I did look at that yesterday after seeing you put the link up. Very interesting but I couldn't see short crank options (155mm). I recently got into "pain reprocessing therapy" and it is really helping my fatigue problems so I'm not going electric for now as I seem able to lightly train again.

They have a 170 & 160mm crank option. I chose the 160mm. Call or email them to if they have a 155mm size. I found them to be very helpful.

 

[Henri]

If I understand correctly, "ISIS" is the mounting standard and you can get cranks elsewhere. I am immediately seeing down to 127mm on a quick Google search.