Recent content by sjacome

Nice build...but i have concerns about ur front fork setup...unless u have a good dental plan....if not no less than a cromoly fork, bmx ones are sturdy and cheap....carbon blings but also breaks..just google images carbon fiber failure...

My umble advice is if the controler works fine and only problem is resistors to hot, keep the same values in resistance but double the power rating of them and as previously sugested leave a gap betwen the pcb and resistors so they dont warm up the rest of the components specialy the caps...

if u think bb7 are the sweet spot ur wrong cause uve never used decent hidraulics. had bb7 on my bike and upgraded to shimano slx brakes with ashima rotors, didnt crash my budget and the feeling and braking power are amazing. other downside of the rim brakes mentioned earlyer are if u crash...

nice work on the hubsetup! u wont regret extra cash spent on the rim, spokes and craftsmanship. a busted spoke can have unpredictable damage to rider and bike. my father in the 70's repaired hundreds of ac motors used mainly in water pumping in harsh enviroments like deep water holes. they...

why not a spring seat like a good quality brooks instead the thudbuster? timeless and reliable for a lifetime. very interested in ur project. godspeed....

around here in europe there is a boom on this scooped models. a friend of mine comutes on one like the pic. he is tall 1'95 meters and heavy 90 kg and he is very happy with it. been womdering if for.the price of 700 euros plus a battery and controller update would be better than a bicycle plus...

what u need is a boost dc converter. Google Mintyboost or MAX756 dc converter, very well documented . I builted one to charge my phone with a 1v solar panel while listening music and radio on the beach. 5 v output only by the way, but for voltages other ic's are available and the principle of...

Hutchinson Piranha - light with the lowest rolling resistance, excelent in tarmac, dry gravel but stay out of the mud, wet gravel.

just try to bild a ebike and get trough a CE standart certification. That cost as to reflect on the final product also.

WTF??

yea but will do if u make a emergency braking with front and rear brakes at full power

i would love a mtb front disk brake ABS system instead. Surely hould save a big dentist bill ... lol

Why not squirrel cage pc fan's (used in blade pc servers and oem pc in the pci slot to cool cases)???

hi there. nice post jeremy, fuel gauge is a cool ebike gadget. Those picaxe's can be a powerfull cheap tool if used right. I recomend interested people to check maxim-ic power management products - they have fuel gauges (some with coloumb counters), battery monitors and protectors IC's. Just...

build a cheap bank of low esr lead-acid batts, wire it to arduino adc inputs and datalogg stuff, control charge and discharge etc.. ur mind is the limit.. optimal eficiency with a solar tracked pv array, (only one rotary axel design? cheaper to build) Several posts on web how to compare two...