bionx
fast singlespeed pedelec from berlin
Submitted by commonman on Thu, 12/31/2009 - 14:36- commonman's blog
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Bionx voltage range
Submitted by R_I_D_E on Tue, 07/28/2009 - 17:03Hi
1) Using code 3772 I have been able to track the battery voltage. I recently bought a 24 V liIon Bionx battery and charger. When the light is green after a charge the indicator only shows that the battery at ~ 75% and the voltage at ~29.0 v. I ran it till the battery indicator was showing zero and get a voltage reading of 25.8 v.
Does anyone know the voltage range for this battery type and how can the indicator be set to show full after recharging - - this seems strange.
2) The speedometer is reading real high - when I walk slowly pushing the bike it shows I am going ~ 10/km/hr and when riding I am going ~ 20 km/hr and its reading ~ 30 km/hr. Anybody know how to calibrate the speedometer?
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Half-fixie bionx? 2
Submitted by han on Thu, 11/06/2008 - 20:18So. During an apartment move to a bigger but half price crib i lost the 48tooth chainring i got like 4 months ago.
During some major rummaging i found it under a bunch of dvds Finally! Right away took the ring and ride to Revolution Cycles before forgetting again. ended up leaving the front derailleur on as a chain guide for now. The result is total perfect cadence compared to before . Dogman's comment had me concerned about not being able to ride hill if the
motor died . I tested this and the 24 cog was suitable for this hilly area with 0 assist. So far so Good :)
BE THE BIKE
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Half-fixie bionx?
Submitted by han on Tue, 07/08/2008 - 22:21So over the months since getting my Bionx it seems others have said before me, I am out performing my big ring. As I've gotten in better shape again ,what I have come to love about bionx is the 'takeoff' assist or just getting up to speed before I get my own momentum going. Previously I did a lot of searching on how to get bionx to assist past the normal 20mph , since then I've become totally content with it's inherent limits .
Ok, Bionx can assist with 'takeoff'. You know, like in the time trials where the coach runs pushing the rider till he takes off? Most People who ask the famous 'how fast' question would love for the coach to just push forever. Anyways ,now 'up to speed' isn't up to par :( with my new legs. Past 20 on a flat I end up pedaling like an eggbeater to maintain. So , I started thinking of swapping cogs ,then I thought of the last time I even used the front derailleur . Yep , just then i figured I could shave a good pound off,stop some rattling and chainsuck all in 1 fell swoop. Ordered a 48 tooth ring ,plan on removing both babyrings ,shifter and cable. May go with a downhill tensioner or plastic chain guard ring. Any suggestion ?

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BionX 500HS MOTOR and longevity of the 36 V Li-ion battery
Submitted by macnobili on Fri, 05/16/2008 - 06:44I bought a bionX 500HS motor with li ion 36 volts battery one moth ago.It is mounted on a good city bike. I have heard (apparently this news comes from the one of our european importer) that is is not good at all to use the recharge function of the bionX; the battery longevity would suffer from it. Is it llike cellular batteries? ie it is not good to recharge constantly the battery ?
Does somebody have experienced shorter life or problems to their bionx battery because of this practise ?
I have decided to note every charge I make and the milage per charge I get. So far, I can do 50 km staying mostly on Nb 1 or 2 assitance. The motor is so powerfull that I do not need (except long hills) much more assistance.
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Bikes and Boxes
Submitted by davew on Thu, 08/23/2007 - 07:24I was at the post office yesterday and I noticed this guy. First I noticed him because he was parking his bike next to mine and then because he was schlepping this big package under one arm. That's not easy. I tried it myself last week with a bulky, heavy box that was too big for my panniers, and I was too lazy to hook up the cargo trailer. My arm got tired pretty quickly. Even if the box wasn't heavy it was big enough to be awkward. And it was heavy. Pedaling was cumbersome because my leg tended to collide with the package on each revolution. (And yes, I still mean the box.) I tried a few things to make it more comfortable. Eventually I had a brainstorm, switched the box to my left hand, stopped pedaling, and used the throttle. Yes, the throttle. I rarely use it so I almost forget it's there, but the Bionx system has a manual override. I could even get up to 20 mph, although my brain told me that this was unlikely to be a wise course of action. After that, and once I figured out that low-speed maneuvering with that much weight is best avoided, things went rather swimmingly. I even collected a very odd look from another biker that I passed. Collecting odd looks is one of my life passions.
Anyway the guy at the post office. He was riding an unpowered bike. Truly studly. I was about to congratulate him on his manliness when I noticed the walking cast on his left leg. Way more studly than I had previously imagined. I struck up a conversation.
Me: "Big box, small bike, broken leg. You are definitely the man."
Dude: "Yeah, thanks. My girlfriend says I always try to do more than I can handle though."
Me: "Such as."
Dude: "You noticed the cast, right? Well a couple of weeks back I was carrying another box and decided to stop off for a latte. I could get started and then ride along pretty well with the box in one hand and the latte in the other and letting the steering take care of itself."
Me: "What about stop signs?"
Dude: "What about 'em?"
Me: "Good point. So what happened?"
Dude: "Then my cell phone rang..."
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