Oxydrive Kit

[KirstinS]

Yes Eddieo .......but you can't actually buy them for reasons I know not

 

[Waspy]

You can cross off the DAA Hub from Wisper. It's never been available, nor will it ever be available in the UK unless Eddieo decides to sell his. It's difficult for me to recommend, because they're all different, but here's how I see it.

• Oxydrive looks the best and nicely specified.
• Ezee is heavy but strong and better at climbing
• Juicy is cheaper, but doesn't look as good, and no disc brake version
• Alien is similar but takes a disc, but battery rack is ugly. High power and high speed option for which I'd prefer a higher rated battery.
• 8fun is similar to Oxydrive, but doesn't look as nice and not as highly specified.
• Cyclotricity is cheap as a basic kit and lots of battery options. Not sure which motor it has
• Xipi if you want high speed
• BMSBattery/GBK DIY cheap, but you need to do a bit of wiring and checking - can get whatever you want depending on DIY skills
• GNG crank drive is relatively heavy, but has torque and speed for fun. Not sure about long term reliability of primary drive.
• Cyclone has torque and speed, but noisy and mounting system is not secure enough.

Lots of choice now the same as ready-made bikes. Everybody's looking for something different. I think that if you've got a higher spec bike and you want it electrified and you want it to stay looking nice, the Oxydrive kit is a strong contender. It's a shame there's no quick solution for hydraulic brakes.

Thank you d8veh.

 

[Deleted member 4366]

Dear Oh dear...

D a a H u b By Wisper Premium electric bike conversion kit Daa Brakes

I spoke with David Miall about it at The NEC bike show. He said that they won't be selling it in the UK, and there'll be no further development on it.

 

[eddieo]

well if that is the case it's a crying shame...

 

[flecc]

well if that is the case it's a crying shame...

Of course there's probably an over-supply now, just look at the range of choice that Dave has listed above, and that's not even all of them. The British e-bike market is still small, and the kit market will only be a fraction of that.

Three years ago there was hardly any choice.

 

[Eagle]

eddio,
Just remember:

There are dark forces at work in this country about which we know little.

But seriously....

d8veh,
I am contemplating securing the 5 magnet plastic Oxydrive PAS, possibly via a thin plate if necessary, to the smallest chain wheel.

I have no idea of the relative dimensions.
Would this work?

This is my Shimano chainset (42T/32T/22T):
Shimano Deore 9 Speed MTB Bike Crank Chainset 44/32/22 175mm Silver FC-M590 | eBay

I think the smallest chain wheel (22T) is this one:
Shimano Deore FCM590 22t Inner Black 4 Arm Chainring | eBay

I have just discovered 2 suitable mounting holes for a fabricated bracket near the rear shocker mount (no risk of interference).
Hopefully I could remove the sensor from its supplied bracket and secure it to this new bracket.

What is a suitable distance for the sensor from the magnets?

 

[Deleted member 4366]

The magnets need to be close to the sensor - normally about 1mm gap. As long as you can hold the sensor somewhere where the magnets can rotate in front of it, it'll work. When you change sides from non-chainwheel side to chainwheel side, you have to flip the magnet disc otherwise it'll work backwards.

Rather than butcher your existing magnet ring, which is the only Daahub one in the country, I can send you one with the centre already cut out if you send me your address by PM.

Here's what I did with my Rocky mountain. I cut the middle out of the disc and epoxied the magnet ring to the inner chain-wheel -just a blob of epoxy at each contact point.. This means that the magnet ring overlaps the BB a few mm. I'm guessing that with your existing sensor bracket, the sensor gap is correct at 1mm with the bracket immediately behind the bearing holder. You might be able to use it on the other side by placing it behind the spacer ring/s on the BB, which will shift it back a bit from the magnets, so the gap might be OK. If you get the chain-wheels off, remove the BB and see if there's one or more spacers behind the bearing holder on the chainwheel side. Here you can see the spacers which fit behind the bearings either side of the frame.

Shimano Deore Hollowtech 2 Bottom Bracket Kit BB51B | eBay

 

[Deleted member 4366]

I went out on the bike again today. This time I was able to go up those same steep hills with a half-charged battery on max power (level 5) with no cut-outs and about 550w showing on the meter, I was able to use full throttle a lot because the journey was only 10 milles, and I can confirm that it'll hold 20 mph on the flat and pulled to 24mph on a slight down-hill - all with my 100kg. A lighter rider would get better performance.

 

[Eagle]

d8veh,

Thanks once again.

I would be using the Oxydrive sensor from that kit, not the Daahub.

My Hollowtech BB is push fit, possibly Shimano BB92:
Shimano Press Fit BB 92/89.5mm - The Bike Chain, Online Cycle and Bike Clothing Shop

Video:
Fit A Hollowtech Crankset - MadeGood | Free bike repair resource

Is it possible to glue the sensor to a thin plate and then fix the plate to the chainwheel with screws of some sort?
I would like to be able to remove that chainwheel if necessary.

I can see problems trying to fit that magnet ring.

 

[Deleted member 4366]

d8veh,

Thanks once again.

I would be using the Oxydrive sensor from that kit, not the Daahub.

My Hollowtech BB is push fit, possibly Shimano BB92:
Shimano Press Fit BB 92/89.5mm - The Bike Chain, Online Cycle and Bike Clothing Shop

Video:
Fit A Hollowtech Crankset - MadeGood | Free bike repair resource

Is it possible to glue the sensor to a thin plate and then fix the plate to the chainwheel with screws of some sort?
I would like to be able to remove that chainwheel if necessary.

I can see problems trying to fit that magnet ring.

Sorry, I got nixed up again. I thought it was Eddieo asking,but the same applies. Cut the middle out of he magnet disk and glue it to the inner chain-ring. Mount the pedal sensor bracket immediately behind the bearing holder and in front of any spacers. It should then be OK, but:

If the gap is too small (sensor touches the magnets), see if there's a spacer ring behind the bearing holder. If so, move the PPAS bracket behind it. If not, Try bending the PAS bracket back or make a new bracket.

If the gap is too big, unscrew the PAS from the bracket and make a spacer the right thickness to go beyween it and the bracket.

If you get this kit, I'll end you a magnet ring cut like mine.

 

[Cyclezee]

You can cross off the DAA Hub from Wisper. It's never been available, nor will it ever be available in the UK unless Eddieo decides to sell his. It's difficult for me to recommend, because they're all different, but here's how I see it.

• Oxydrive looks the best and nicely specified.
• Ezee is heavy but strong and better at climbing
• Juicy is cheaper, but doesn't look as good, and no disc brake version
• Alien is similar but takes a disc, but battery rack is ugly. High power and high speed option for which I'd prefer a higher rated battery.
• 8fun is similar to Oxydrive, but doesn't look as nice and not as highly specified.
• Cyclotricity is cheap as a basic kit and lots of battery options. Not sure which motor it has
• Xipi if you want high speed
• BMSBattery/GBK DIY cheap, but you need to do a bit of wiring and checking - can get whatever you want depending on DIY skills
• GNG crank drive is relatively heavy, but has torque and speed for fun. Not sure about long term reliability of primary drive.
• Cyclone has torque and speed, but noisy and mounting system is not secure enough.

Lots of choice now the same as ready-made bikes. Everybody's looking for something different. I think that if you've got a higher spec bike and you want it electrified and you want it to stay looking nice, the Oxydrive kit is a strong contender. It's a shame there's no quick solution for hydraulic brakes.

Interesting list Dave,

Might I just add that the Mk2 eZee kits have even more torque than the Mk1 along with several other improvements

There are a few more that could be added to the list, BionX, Goldenmotor, Heinzmann, etc., but I know which I prefer

 

[rpurchon]

first post on here. i had trouble fitting the disk to my bike ,8 fun kit.
i have glued my magnets directly to the chain wheel with epoxy no plastic disk.
mark the magnets before removing from disk with a felt pen so you dont mix north/south poles.
test before glueing.first time mine only worked pedaling backwards.
richard

 

[Eagle]

If you get this kit, I'll send you a magnet ring cut like mine.

d8veh,
That is extremely generous of you.

I must go away and do my sums. I think I need a bike stand (Park Tool?) as well.

Your latest conversion with the Oxydrive kit does not seem to lacking in power or speed.

Thanks for all your technical help to myself and others on these forums. It is greatly appreciated.