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apologies all, its 19% on average with bits that are a little higher - this http://www.doogal.co.uk/RouteElevation.php is a really easy way to calculate elevation of any road on google maps between two points, apparently. It was two panniers full of flint and a heavy chain lock (around 30 plus...

for what it's worth, the oxygen 13Ah kit gives (IMHO) loads of assistance. Now that I'm used to it I sometimes wonder whether it may be too much. My steepest hill is about 30% - recently I had about 100kg on the bike (me included) and didn't feel able to pedal much beyond just activating the...

many thanks, that sounds brave - the problem with a fork is that it's such a critical component - if it goes it will when hitting a pothole downhill at 40 mph - I think it looks classic what you've done, but suspect, being somewhat neurotic, I'm going to have to replace the BSA's fork with a...

I'm sorry to hear about the ordeal,its the kind of crap one doesn't need. One obvious way forward I guess is to put it in a 26 wheel? I ordered a BPM from BMS in a 20 wheel and built it into a folder which absolutely tops out at 20 mph and am planning to go for bigger wheeled bike for some speed

it looks great, very stealthy, and generally, as a city bike. I thought about doing the same with an ancient BSA I have. One thing - how do you know how strong the forks are? Were vintage forks stronger, less strong or as strong modern steel forks? many thanks

a problem - for me and I suspect others - is the confusion between "percentage" and "degree" as measures of gradient. Baldwin street in Dunedin, new Zealand, for the record, is the steepest road in the world - at 35% (disputed 38%) (see https://en.wikipedia.org/wiki/Grade_(slope) a student was...

I had the same struggle with a diy build Raleigh twenty to mount battery. one very messy solution (my controller and battery are separate) that struck me like a bolt out of the blue is to simply stuff it in a carradice saddlebag. that way its removable, reasonably safe in accidents, need no...

It's not a bad name (woosh should really get some commission from the SA tourist board for making the world aware of it!), the anorak in me likes it when names are code for specification, such as USB BC for USB-IF Charging Specification version 1.2 as opposed to USB 3.1 etc, but i can understand...

That sounds great,out of curiosity how did the name karoo (khoi San for a small but pretty desert in southern Africa)get into it?

Habituation does it for me,I have a 700c 23 145psi racer with rigid carbon fork and oxygen kit. For the first month I thought about ditching it in my poooootholed neck of the woods. Then coordination caught up and I grew into it. Now I wouldn't change it for the world,it does 13 miles in 30 to...

Great stuff,very informative

Time to call intact seller,quote distance buying regulations and get a repair/refund I imagine,though you can hardly blame oxygen for the antics of a nihilistic courier

main issue in my experienced is underestimating braking distances - on paper my pedelec isn't faster than my highest previous speeds non assisted - but to me there's a worlds difference between averaging 20mph in stop start traffic and only occasionally hitting that on downhill's and straights...

my hunch - but I may be wrong I have limited experience of torque sensored bikes - is that your experience of lack of assistance is because of the tasman having a torque sensor - I have a friend with a tasman and I expe4rince this viz a viz my PAS with its movement sensor (an oxydrive kit). On...

that was meant to be a smiling face..!

and there I was feeling like the king of the road on my DIY dragster :@)

many thanks, very helpful, the power isn't for outrageous behaviour, just for squirting away quickly ahead of traffic, and it's all very low key installation

could I ask a related question (sincerely don't mean to derail this thread): is my 3kw 17.8mph restricted raleigh twenty BPM Lipo DIY pedelec a pedelec? I don't (at all) mean to get into the legal jungle covered in previous posts - what I mean is if our friendly local community police officer...

many thanks, for what it is it seems genuinely cheap, I wish it was made in 13S balanced charging (I see it does it unbalanced)

many thanks, I guess that means if one stuck an s12sh (45A) one could get enough torque from it, though one would get more from a bpm, so no point really, wont wade back into any hub versus crank dichotomy, but it may explain (hub giving similar torque across wider range in real life scenario)...