Full suspension MTB Ebike?

[Stumpi]

Now you'll have to excuse me as I'm new to all this but alongside my Cytronex I have a rather nice Marin MTB. I ride the Marin mainly off road at Glentress Forestry park near Peebles just up the road from me. its a great place but involves quite a long climb to get to the fun bits. I'd quite like a little help to get up to the top.

I've not seen a proper full suspension MTB Ebike on the market.


Does anybody make one?
Has anyone fitted a kit to one?
Will the motor etc take the pounding off road?

Stumpi

 

[AndyOfTheSouth]

Hi Stumpi!

Try electric mountain bikes, electric bicycle, electric bike kits, folding bicycles

 

[dave m]

Motor on a full suspension mtb

Hi, In answer to your question I'm in the process of putting together such a beast.
I've included a couple of shots,(if I've uploaded right) I'm using a cyclone motor mounted just under the shock. The front crankset is my own making. The crankset has 4 chainrings the outer one is driven by the cyclone motor. The crankset freewheels as well as the motor gear. When I'm off road and peddling the use of the full gear range is still there. If I'm tired I can kick the motor in. At least that's the plan.
So far no real problems but I'll keep you posted once up and running.

Regards
Dave M

 

[eTim]

Now you'll have to excuse me as I'm new to all this but alongside my Cytronex I have a rather nice Marin MTB. I ride the Marin mainly off road at Glentress Forestry park near Peebles just up the road from me. its a great place but involves quite a long climb to get to the fun bits. I'd quite like a little help to get up to the top.

I've not seen a proper full suspension MTB Ebike on the market.


Does anybody make one?
Has anyone fitted a kit to one?
Will the motor etc take the pounding off road?

Stumpi

Stumpi, this is scary - I also have a Marin, a Trail Attack and have been eying it up since buying the Cytronex. I don't know alot about electric kits but I think an 'illegal' motor would suit the Marin, because there will be losses through the full suspension and it's going to be used 'off road' only !

My guess is a front hub motor would be unsuitable due to the bashing it will get, maybe I am wrong though as the front suspension is pretty long travel on this bike??

Interesting thread

 

[jac]

hi if money no object biketec flyer x series is full suspension

jim

 

[Stumpi]

Hi Stumpi!

Try electric mountain bikes, electric bicycle, electric bike kits, folding bicycles

I quite like the look of that system esp. having the battery in my back pack. I carry a second Cytronex battery in my camelbak anyway. I wonder if I could run that system with my Cytronex batteries? I'm guessing a rear hub also means doing away with my rear disc barake on the Marin but it does not have points to hang a set of V brakes either.

Hi, In answer to your question I'm in the process of putting together such a beast.
I've included a couple of shots,(if I've uploaded right) I'm using a cyclone motor mounted just under the shock. The front crankset is my own making. The crankset has 4 chainrings the outer one is driven by the cyclone motor. The crankset freewheels as well as the motor gear. When I'm off road and peddling the use of the full gear range is still there. If I'm tired I can kick the motor in. At least that's the plan.
So far no real problems but I'll keep you posted once up and running.

Regards
Dave M

That looks interesting please keep us posted on your progress

Stumpi, this is scary - I also have a Marin, a Trail Attack and have been eying it up since buying the Cytronex. I don't know alot about electric kits but I think an 'illegal' motor would suit the Marin, because there will be losses through the full suspension and it's going to be used 'off road' only !

My guess is a front hub motor would be unsuitable due to the bashing it will get, maybe I am wrong though as the front suspension is pretty long travel on this bike??

Interesting thread

I reckon a rear hub would be better as well although I would of thought a lower rpm motor would be better for hill climbing esp if you're beating your way though uphill single track. My understanding is a quicker motor would just run slow under load and hemorrhage power. However this is all very new to me so I'm learning as I go

hi if money no object biketec flyer x series is full suspension

jim

that is so cool

Is there a UK supplier

 

[flecc]

that is so cool

Is there a UK supplier

The UK agent for Bike Tech is Vita Electric at Hampstead, London.

They don't normally list the X types apart from the XT tandem, so it would probably be a special order.
.

 

[jkirkebo]

I've not seen a proper full suspension MTB Ebike on the market.

Has anyone fitted a kit to one?
Will the motor etc take the pounding off road?

Stumpi

I've fitted a rear Ezee 350W kit to my Giant NRS2 (2004 model). The battery is a custom 48.1V 8.8Ah one made from 18650 Konion LiMn cells from Bosch battery packs. It's triangular and sits in a custom frame bag from Epic Designs. The controller is a Infineon 20A.

I have no pictures yet as two of the hall sensors died on the test tour so the motor is in Canada for repairs...

Cruising speed about 25mph and top speed around 28mph.

 

[emissions-free]

The rear puma motor would be good for this application. They are a conservatively rated 500W at 36V geared hub motor. Mine pulls about 800W during acceleration but that may be limited by the 25A controller I'm using with it. They also handle 48V no problem and would be pulling well over 1KW max at that voltage. I can give you some exact figures soon as I've got a cycle analyst fitted now and will have some higher rated controllers and a descent 48V 10Ah battery fitted very soon.

The complete kit could be done at a very reasonable price for an early adopter Cells would be screw type 10Ah 5C constant (50A constant) 8C max that could be mounted into a frame bag if you wanted. A single 500W climber on a rather undersized 36V battery does about 38kph on my bike. At 48V I'd estimate 45 to almost 50kph. You could even have another in the front as well, both running 48V but you'd need to be very careful with the forks as Aluminium suspension forks don't like big powerful hub motors.