Gocycle Internals

[Deleted member 4366]

In case anybody is wondering what's inside a Gocycle mk2 chain-case, here's a photo. I repaired this one for someone. It needed a new servo to operate the auto gear-shifting. Interestingly, it's a normal R/C servo like they use in aeroplanes, cars and robots. It was fairly straight-forward to install. Gocycle provided a step-by-step photo guide, though I would have figured it out on my own as there was nothing complicated.

Interestingly, the chain-wheel is separate to the crank. the two pedal arms are fixed to the square tapers, but the chain-wheel is turned by 8 steel pins that join it to the pedal arm to allow the arm to be assembled after the chain-case cover,

I love this bike, especially the mk2 with the progressive throttle button. If you ever get the chance, have a go on one. they're an absolute hoot, especially if you get whoever to turn the power and speed up.

 

[Kendalian]

Hi d8veh, I notice the bike has folding pedals - do you know what make they are and if they are any good? I am looking for a set to get my bike in the rear compartment of the campervan - easier than having to take them off each time.

Kendalian

 

[phil01]

Looks a nice simple set up Dave, such a simple servo idea

 

[Deleted member 4366]

Hi d8veh, I notice the bike has folding pedals - do you know what make they are and if they are any good? I am looking for a set to get my bike in the rear compartment of the campervan - easier than having to take them off each time.

Kendalian

You can buy folding pedals very cheaply on Ebay:

http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313.TR6.TRC1.A0.H0.Xfolding+pedals.TRS0&_nkw=folding+pedals&_sacat=0

 

[Kendalian]

Or even expensive ones!

Kendalian

 

[Fuzzy]

How do you oil the chain?

 

[Woosh]

How do you oil the chain?

if the chain does not get dirty in the first place, there is no need to oil it for the next 10 years.

 

[Deleted member 4366]

How do you oil the chain?

If you look at that black thing by my foot, it must be a removeable plug for checking the chain tension. You have access to the chain there if you wanted to oil it, but as Woosh said, covered chains last a lot longer.

 

[Deleted member 4366]

After reading another thread (or two), I was thinking about that motor. It's very powerful yet tiny. We were racing around Redbridge on a pack of these bikes. I'm 100kg, but the speed was in the mid 20s a lot of the time.

It's a shame that we can't use this motor, or a derivative, on other bikes. It would be perfect for the E-Brompton, but they're a competitor to Gocycle. Brompton could at least learn a lot from that motor and make their own version.

 

[Woosh]

does it look like a hub motor with internal hub gear to you?

 

[Deleted member 4366]

does it look like a hub motor with internal hub gear to you?

It looks more like an R/C motor clamped by the fork. It has a clutch of some sort.

This is the mk1:

 

[Woosh]

that is one very elegant motor.