Oxygen & New Oxydrive System.

[MyPump]

Hi all,

Sorry it is a little bit late but Happy New Year to all and I hope we are all well ?

It has been almost 1 year since I purchased my Oxygen Emate Race 2011 which is fantastic and I have nothing but praise to the guys at Oxygen as this is an incredible ebike. I did lots of homework to find a great looking bike and purely by accident came across Oxygen which I am so glad I did.

I have now been looking into purchasing one of the New Oxydrive systems for my Trek Hybrid 7.5FX as this would look great and of course be very light as my Trek only weighs 10kg and I believe the Oxydrive system is approx 6.9kg (Dont hold me to this though). I am still very happy with my Emate Race 2011 but am always looking for the newest upgrade and the Oxydrive system certainly looks the part. I am not sure of how difficult this system would be to fit to my bike or even if any of you guys have already tested/fitted this new system as it seems to be very new indeed ? It would be great to hear from Oxygen on how difficult the Oxydrive system is to fit and do you need to have any past experience to be able to fit it as I am not expert, I have seen that a shop can fit the kit for you if required ?

What do you think of this kit and if you had the choice would you buy a specific electric bike eg Oxygen Emate Race 2011 of if you already had a lightweight standard cycle such as a Trek 7.5FX would you go with adding the Oxydrive to the Trek ? Are there any plus or minus points on either options ?

One other question I have for the team at Oxygen is if I purchased your Oxydrive and had it fitted to my Trek and decided one day that I wanted to cycle without the Oxydrive how much weight would be added to my bike or rather what could be easily removed from the bike to make it as light as possible i.e. battery, motor wheel etc ?

I am sure we will see lots of reviews on this type of system soon and I hope to be one of those people going forward as weight of an electric bike has always been in my mind as I do also like to cycle without using pedelec (Sorry all).

Thanks for listening and I look forward to hearing your advice/comments.

Andrew

 

[MyPump]

Hi,

Sorry I forgot to add how much owning an ebike has helped me as I have Type 1 Diabetes and used to find the commute home from work would burn up most of my blood sugar which can be very dangerous indeed for someone with Diabetes.

So my Oxygen EMate Race 2011 has certainly helped with this as I find myself using Pedelec for most of the journey and also now and again use the throttle option.

 

[eddieo]

The disc version of 7.5 is approx 12 kg according to Evans site. so you will end up with a bike just under 20kg, the range will be less then your bike I would think, but it SHOULD be easier to ride unassisted. but this is an unknown as no one on here has one yet......

I have the Wisper DaaHub kit fitted to a bit better bike and it is a lovely set up, weight well distributed, balance and handling excellent. It comes with a wheel in a bag so very easy to swap wheel around, take battery off, and you have the bike @ near enough standard weight.

Yes I think these kits are the future for serious e biking. Without spending a fortune you get a bike comparable with the best of e bikes.......

I am on insulin as well...always have a snack before you go out, carry some juice/sugar drink and glucose tablets at all times.

 

[mike killay]

Hi,

Sorry I forgot to add how much owning an ebike has helped me as I have Type 1 Diabetes and used to find the commute home from work would burn up most of my blood sugar which can be very dangerous indeed for someone with Diabetes.

So my Oxygen EMate Race 2011 has certainly helped with this as I find myself using Pedelec for most of the journey and also now and again use the throttle option.

Yet another good reason for retaining throttles.

 

[filboov66]

Hi. I have just fit this kit on a Carrera Subway hybrid. Pretty easy job. 2 snags during installation. The disc caliper was catching the spokes, so I fit a 2mm rotor spacer. This cleared the spokes but after a quick test ride under braking the torsional pull on the caliper caused it to catch the spokes. Solution - New calipers - Clarks CMD-8. They have a much thinner profile on the inside and gave plenty of clearance, still retaining the rotor spacer for good measure. The second glitch was there was not enough space on the crank for the pedal sensor. Oxygen recommend fitting a longer crank. My much cheaper option was to fit the magnetic disc on the crank as normal, then remove the bracket from the sensor and fabricate a custom bracket using Polymorph (available at Maplins) and fitting it on to the bottom bracket.
Build costs- Bike £280, Kit £799
Additional costs not necessarily needed on other bikes- Rotor spacer £2, Caliper £17.99, Polymorph £5
Weight before kit added 13.5kg. After 20kg.
The wheel and battery are easily removable if you want to ride normal but would suggest re-usable ties for the motor wiring as the connection is near the battery.

 

[Kenny]

Hi filboov66, Welcome to the forum.

The bike looks very good and and your fitting tips will be very helpful to any members fitting this type of kit.

This kit has raised quite a lot of interest with it's sleek looks. Hope you'll post further and let us know how it performs.

 

[filboov66]

Hi Kenny. I've not had much chance to ride it any distance yet due to the snow coming down the day I built it up. I have never ridden an ebike before so can't compare. Initially it seems very good. Some effort was required up the steepest hill near me (20% or 1 in 5 if your not so young) but I was still alive at the top and having ridden the hill in the past unassisted I knew it was easier. On the flat and slight gradients hardly any input was required to keep a good pace. I tried it on the flat with throttle ony and it pulled along at 13-14mph, could be more but I think the motor was under protest with my 16 stone bulk. There is a setting on the display which you can override the 15mph cut out and raise it to 25mph maximum (purely for off road use) I will add more about battery performance when I find out.

 

[Kenny]

Glad your enjoying the bike. Pretty sure the kit uses the Bafang motor and the performance is what you'd expect from this very reliable motor.

Didn't realise the kit had an off road setting. They normally require a bit of tinkering to de-restrict.

Definitely one of the nicest battery mounting solutions available.

 

[robwalley]

Oxydrive

Just had this kit fitted to a Cube Hooper pro, which is the hybrid 11 speed alfine, comes to about 17kg, fitted by 50cycles, so far so good.

A small query regarding your magnetic disc though, mine can be hand turned and the middle seems like a gripper type fitting. This is probably by design though. What I suspect is not is that mine is angled. It looks like the spacer has been left out so the disc rubs on the receiver rather that spins past. Check out the photo, doesn't affect the performance but could wear badly, just seems wrong.

Minor niggle about the design of cables and the fact that you can't shorten them based on their plug system and on my cube the shimano disc rotors are riveted to a center lock which results in a different rotor having to be fitted to the front motor wheel, I may drill out the rivets and refit the original, but I'm just being anal I suspect.

Medical issues and laziness tend to make me a fair weather cyclist, so will report back further when the weather improves.

Hi. I have just fit this kit on a Carrera Subway hybrid. Pretty easy job. 2 snags during installation. The disc caliper was catching the spokes, so I fit a 2mm rotor spacer. This cleared the spokes but after a quick test ride under braking the torsional pull on the caliper caused it to catch the spokes. Solution - New calipers - Clarks CMD-8. They have a much thinner profile on the inside and gave plenty of clearance, still retaining the rotor spacer for good measure. The second glitch was there was not enough space on the crank for the pedal sensor. Oxygen recommend fitting a longer crank. My much cheaper option was to fit the magnetic disc on the crank as normal, then remove the bracket from the sensor and fabricate a custom bracket using Polymorph (available at Maplins) and fitting it on to the bottom bracket.
Build costs- Bike £280, Kit £799
Additional costs not necessarily needed on other bikes- Rotor spacer £2, Caliper £17.99, Polymorph £5
Weight before kit added 13.5kg. After 20kg.
The wheel and battery are easily removable if you want to ride normal but would suggest re-usable ties for the motor wiring as the connection is near the battery.

 

[filboov66]

Don't ride it until you sort it out, the sensor will wear and fail. The magnetic disc should be vertical and have a gap of 1-4mm between it and the sensor. If you can adjust it to that, fine, if it wobbles or is loose you could try a bit of glue or epoxy resin to hold it. If there is not enough space to adjust then a longer crank is required or a bodge like I did on mine. It looks like the back of the sensor on your photo is catching the bottom bracket as it seems to bend out slightly.
As for the rotor, before you do any drilling, have you checked that they will fit a standrd 6 bolt hub. I thought the shimano centrelocks were 5 rivets.

 

[Oxygen Bicycles]

Hi Rob,

Thanks for the pictures, bike looks great but please don't ride your bike as it's now. The magnet disc should never touch to the sensor. There should be at least 0.5mm gap between. There is a very easy fix to your bike.

As you see the sensors bracket has a small bent. The sensor's is fitted to the bracket with two screws. Get it removed and turn the bracket by 180 degrees (mirror view). Fit the sensor back then and refit once again. It will pull the sensor back by approx 3-4 mm. The magnet disc will then stop touching it at all. It's an easy 10 minutes fix. In case you have any questions please ring me direct 07738866502.

all the best

Andrew

p.s I'll be in Asia from Thursday till May the 3rd so may not be able to pick calls

 

[robwalley]

Oxydrive fitting

Thought as much, paid good money for 50cyles to fit this. Don't think Oxygen Bikes would be too impressed with their partners. Will be taking this up with them.

The shimano rotor is 6 rivets and I do have a spare on the original Alex Rim which is much better than the oxygen supplied (needs truing) one, I assume 50cycles didn't build the wheel although though could have spotted the warp.

If I knew the exact motor model, it might be worth sourcing motor only for a build on my orignal wheel. It may be written under all the 'oxygen' stickers on the motor itself.

So far, not so impressed, performance seems very good though.

Don't ride it until you sort it out, the sensor will wear and fail. The magnetic disc should be vertical and have a gap of 1-4mm between it and the sensor. If you can adjust it to that, fine, if it wobbles or is loose you could try a bit of glue or epoxy resin to hold it. If there is not enough space to adjust then a longer crank is required or a bodge like I did on mine. It looks like the back of the sensor on your photo is catching the bottom bracket as it seems to bend out slightly.
As for the rotor, before you do any drilling, have you checked that they will fit a standrd 6 bolt hub. I thought the shimano centrelocks were 5 rivets.

 

[filboov66]

T
If I knew the exact motor model, it might be worth sourcing motor only for a build on my orignal wheel. It may be written under all the 'oxygen' stickers on the motor itself.

Why not use the motor you already have and save the expense of another motor

 

[eddieo]

the motor is an SB I think......has been discussed before

 

[Oxygen Bicycles]

Hi Eddie,

We no longer use Suzhou Bafang motors on any of our bikes or kits. All motors are now our own branded motors which have been developed in partnership with one of the Chinese motor manufacturers.

Rob as others suggested if you like your rim more you would be best by just rebuilding the wheel with your rim.

all the best

Andrew

 

[robwalley]

I Have sorted the sensor out with a longer 127mm bottom bracket rather than the 118mm 50cycles put in. Due to the eccentric bottom bracket the sensor had to be the wrong way around and protroud a little further than intended. All looks OK now, however I hadn't considered the effect on wear to the chain or the sprockets due to slight angle it now runs out because of the additional protusion of the bottom bracket. Any ideas on this?

Also anyone know what the spoke length is for a build on a 700c wheel with the oxydrive motor without me taking it apart to measure?