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OK, so the chain moves at a given speed from the motor sprocket, it then turns the large gear shown in your pic, the size of this gear dose not effect the speed of the chain only the speed at wich the smaler sprocket turns & moves the final drive chain. As the two sprockets shown must rotate at...

There you go beaten to it ! I took to long to write my reply :p

From what I can see of the sprocket teeth in your pic, I recon there's a 22 tooth & 16 tooth. guesstimating a reduction of 0.7:1 To get a 3:1 reduction you'll need a 48 tooth sprocket along with the 16 tooth. I may be wrong but I do spend a lot of time with gears :rolleyes: As I build...

I hope you came away uninjured Now that surprises me. I'll assume as you were on rough ground this grunt wasn't a Lycra clad power ranger, there normally the ignorant ones. I was out today and stopped several times to admire the views (& catch my breath) 3 times I was asked if I needed...

I was tempted by some of there stuff because of the price but then like RobF, I thought, will I actually use it. Ive got a cupboard full of "bargains" I don't use :(

I to have the Maplins insoles and use them with thick socks in a pr of clunky snow boots, they work fine for standing around whilst I'm attending my monthly RC Truck club. I did try the insoles and two socks in the shoes I use for cycling but they were far to tight, so it's new shoes for the...

I spent this afternoon fruitlessly looking for shoes, grippy soles for flat peddles and stout enough to keep my toes warm this winter, (raynaud's disease) last year I put tinfoil over my socks before putting my shoes on :confused: Anywho now I'm doubly disappointed seeing Aldi shoes sizes 8 to...

I think valve tampering is quite rare and never seen as a "joke" if done at all it's malicious. I've had novelty caps stolen but no one has ever bent my stem,:rolleyes: Should someone want to let your tyres down there just as likely to use drawing pins or a knife so lock on dust caps is no...

How dose that work out with my internally geared Bosch motored cube 29er running 2.1" big Apples. I tried working it out once but found it easier just to count for one minuet Along a straight bit of road. I'm sitting at about 75 rpm (average) even after 30/40 miles it's still about the same ;)

I've tried to justify myself after receiving snide comments but as already mentioned, there's just not enough time. Recently after being told "that's cheating" I've taken to responding with, And Loving it. Its usually enough to rase a smile. Strangely, I was really peed off by the cheating...

I'll second vote the suntour seatpost. I've got the NEX version and it's the best cycling accessory I've brought, I even move it between two bikes and won't ride a bike without it.

A sweeping statement there ;) I ride at my most efficient cadence and change gear to keep it there, that's close to my motors optimum rpm. This is not by design more a fortunate coincidence, my arthritis means I can't peddle slow & hard so after many years my legs now work best at around 70...

I try to keep it simples. Tube, pump, skabs, mini Allen keys, mini multi tool, £20 note & my phone

Without putting much effort in, I've just pulled this from wiki.

When you start looking there's quite a few out there, if you don't mind the post from HK. I brought this one for £5.80 and it took 15 days to arrive :) It dose exactly what it says on the tin, I can't fault it...

I thought I'd moved on then you went and quoted me, a flag pops up drawing me back in. This time I'm not coming back to this thread. No really :p

:) For me it was exactly the opposite. Rather like watching a bad film, your expecting something worthwhile to happen because the paper recommended it, only to be surprised when the titles come up and you finally realise the good film was shown on a different channel. This thread has been a part...

Yup, I'm up there close to 17 on my cube (Bosch) but only really notice it on the flat with full power, that's not very often as I usually save the juice for those hilly bits ;)

OK so I popped out today to use a bit more juice and see how things were. To start the display still showed 39 miles (Eco) from yesterday, during my 20 mile ride is slowly decreased like normal, down to 18 miles left and 2 battery bars. Things seam fine now so I've now given it a full charge...

There's not many flat bits around here despite what you might think ! Saving the juice by changing down on the hills (1st or 2nd gear) before I turn the power on and then only just what is needed (rather than whacking it on full power ) even then my average is 12 MPH If I'm feeling like a bit...