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That's a problem for any bicycle with spoked wheels. It's normal to have to adjust spoke tension every 1000 miles or so, and to have to replace some spokes every 5000 miles or so. The spokes on the CrossCurrent are thicker than normal so as to make them stronger and more able to support a heavy...

Check out the Juiced Riders CrossCurrent ($1,499). Other than that, I'd recommend the Haibike SDURO Cross SM. It retails for $2,499, however, I've seen them for sale under $2k, and since it's end-of-season-sale time, I think any Haibike dealer with SDURO Cross SMs in stock would be willing to...

Interesting. If a motor overheats during the course of normal operation at 36V, is it truly a 36V motor?

I'm excited to see these cells go mainstream, however, I think it's the fire risk as well as the need to keep them at a safe voltage that is going to cause consumers to continue to rely on ancient lead-acid batteries. All of the niche markets (security, military, transportation) have already...

It sounds like you either have a torque sensor malfunction or you're simply not putting enough torque down on the pedals to activate the assist. My girlfriend has a torque-sensing pedal assist ebike and when I ride it (I'm 180lbs), the motor offers strong power all the time, however, when she...

It sounds like we're in complete agreement. The Falco is shutting down because it needs 48V to go faster without overheating, just as I proposed earlier. Would the Falco overheat if you only go 20MPH on flat ground @36V? More importantly, any motor that overheats on mild assist at 36V is not a...

Ebikes with drop handlebars are indeed available from Haibike and Giant, however, in general, ebikes use mountain bike components (brakes, shifters, etc) which are designed for flat/hybrid/mountain bike bars. Also, since 2015, higher-quality electric bikes have been shipping with hydraulic disc...

Their battery packs are as safe as any well-designed lithium-ion battery packs are, however, their individual battery cells are just as volatile and imperfect as any high-volume branded lithium-ion cells are, and they'll go into thermal runaway state (think 900°F) if punctured, and can...

I assume higher speeds because there is no reason to go to 48V except to attain higher speeds. If your bike is limited to 25kph (15.5mph) or 32kph (20mph), then all you'll need is a 36V/250W (nominal) motor. 36V/350W (nominal) Bosch systems are quite capable of 28MPH (45kph) cruising.

There is no case for 48V at low speeds because 36V@15A (540W) provides all the power one could need on an electric bicycle, and 15A is easily carried by regular-gauge (~18AWG) wires without losing much energy in the form of heat. Higher voltage batteries do not contain more energy (watt-hours)...

There's no law limiting ebikes to 36V in Europe. There would be some significant costs, though, in upgrading a system used by millions to a wholly-incompatible system. You'd have to continue producing replacement parts for 36V systems while selling brand new 48V systems. There isn't any need for...

Solution: don't let go of the handlebars. ;-)

Hmm, interesting. How does the 48V battery cause anything to overheat? The bike's controller is pulling the same amount of current from the 48V battery as it would from a 36V battery. Current draw is responsible for heat in an electric bike battery or controller, not voltage. In general...

I just came across this new heavyweight ebike this afternoon that's built by Greyp in Croatia: Apparently it can travel up to 240km on a single charge! Here's the link to the quick post I wrote about the bike: http://overvolted.com/the-greyp-g12h/ What does everyone think? To me, it seems...

You're probably right about the battery incompatibility, however, there is hope, because a year or two ago, some Australian ebikers figured out that they could in fact use an American-spec 48V Easy Motion battery to make their 36V Aussie-spec Easy Motions go faster than 32kph. I believe they...

Congrats on your Koda, Dave! That bike is a great value and has some pretty impressive specs.

Charge to 50% and then wait to fully charge until just before the next ride. For those of us who need a little more flexibility and want to be able to go on rides on short notice and without waiting to charge the bike, the second-best option is to charge your battery to ~80% instead of 50%...

The performance of this Zehus motor must certainly be atrocious considering the extra rotating mass of the battery and the poor heat dissipation that comes by design. Nice frame and frame design, though. This bike reminds me a lot of the GoCycle: pretty to look at, but offering just about zero...

Nice build, Lawrence! If I may ask, why did you decide to go with the 26F cell when there are other cells out there that offer higher energy density and higher current draw at a similar price? For instance, the Panasonic NCR18650PF cell offers 10A max current draw and 2900mAh and is a mid-priced...

I'm having the same issue with my Lunacycle-sourced 52V Shark pack (13.5Ah/GA). It never sparked before when plugging in the 3A barrel jack connector from the charger to the battery's charge port, but now it's noticeably sparking. EDIT: After testing, I've discovered that the barrel jack...