gwhy

Yes it would.

you can use this http://www.ebay.co.uk/itm/DC15-120V-Waterproof-Blue-LED-Panel-Meter-DC-Digital-Voltmeter-Two-wire-v-h9-/331196216262?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item4d1cd533c6 fit this directly to the battery + - via a small fuse to monitor the complete battery voltage when you are riding. Once you know that your lipos are behaving ok ( after a few charges discharges ) then there is not really a need to run the cell level monitors on the bike all the time, the voltameter i linked to is good enough to use as a battery fuel gauge, for a 48v lipo stop riding when voltage is around 41v... then use a cell level monitor to test the cells before you recharge the battery, to make sure that all the cells are approx the same voltage +-0.2v and none are below around 3.4v as most lipo problems/accedents occur when being charged due to a faulty or low voltage cell. The throttle is just a standard e-bike hall throttle so any e-bike throttle will work but you may have to sort out the wiring. I would test the output first of the hall throttle that you have fitted, it should give a signal output of 0.8v with the throttle closed to around 4v WOT, to test this use a voltmeter measuring between the gnd ( black wire on the battery ) to the signal wire that comes out of the throttle on a DC volt range. Anything less than around 3.8v output means that full throttle will not be achieved. The magnets sometimes become loose or broken in the throttle housing and this can effect full throttle and also closed throttle but can also give a non-linear voltage output.

do you mean the front or rear sprocket? as you have snapped the chain then I expect it is a #25 chain, this number may be stamped on the side plates of the original chain or if you measure the distance between pin and pin on the chain this will be approx 6mm, you can buy #25H chain this is a heavy duty chain and has thicker side plates than standard, to workout if the front sprocket will fit you will have to measure the dia of the motor shaft and the type of fitting, I think most osets are 12mm shaft with a 'D' type fitment.

oset use to types ( sizes ) of chain for there bikes so you would need to know what chain pitch is used on the mecatecno.

Here are the instructions, this should give most of the details that are needed to decide. Throttle Tamer Instructions V1.0.pdf It is a inline device that fits between the throttle and controller. Here are also a couple of pictures of the device. Please be aware that I do not make these or sell these devices, I just think that It may be a good solution to a problem that some are having with throttle control on electric bikes.

throttle tamers are $45 delivered international and $40 delivered stateside, I now have the contact details of the seller if anyone would like the contact details then please PM me. The throttle tamers allow adjustment of throttle resolution and up ramp speed and a includes a glitch filter. Edit: The throttle tamers are not my product and I don't sell them.

The throttle tamers are $45 delivered international and $40 delivered stateside, I now have the contact details of the seller if anyone would like the contact details then please PM me. The throttle tamers allow adjustment of throttle resolution and up ramp speed and a includes a glitch filter. Edit: The throttle tamers are not my product and I don't sell them.

The throttle tamers are $45 delivered international and $40 delivered stateside, I now have the contact details of the seller if anyone would like the contact details then please PM me. The throttle tamers allow adjustment of throttle resolution and up ramp speed and a includes a glitch filter. Edit: The throttle tamers are not my product and I don't sell them.

throttles can have a large dead band at the start of there travel but should still have a sweep voltage up its max. The size of the dead band can vary for throttle to throttle and this includes pot throttles i.e the magura and the new domino pot throttle. if the speed do not shut off instantly when the ( any type , hall or pot ) throttle is closed then this can indicate a fault with the throttle i.e loose magnet, broken sensor, this should definitely not happen. the kelly /margura combo is just one way to get around the problem ( its the most expensive way ) of curing a snatchy throttle the kelly controllers ( from my experience of with the couple of models that I have played with) have a very sluggish ( in electronic terms ) ramp up , I know this can be set in the software but even the fastest setting still has a slow ramp up. I believe that its this slow ramp that gives the feeling of better control. other options to try to cure this on the standard oset controller is make sure that the throttle is 100% working as it should ,use a Cycle analyst ( £100 ), use a pico controller (£130),use a throttle tamer(£30), make a rc filter to go in between the throttle and controller ( 3 or 4 components at a cost of less than £1.00 ) or you can even load the bike down more ( via gearing )and this will also tame the throttle response but this will make the motor run hotter and give the bike more top end but it will reduce the starting torque from zero throttle. The kelly controller is not to expensive (£130) but if your original throttle is working 100% then there is no need to also buy a magura throttle (£50) Edit: just because a throttle appears to work fine on a different bike may not indecat a good throttle. The different bike may have different gearing, different controller or motor with different current limits ( power ).

Yes treat it just like a oset or any other 36v bike to upgrade the batterys, if you use a different chemistry dont forget you will also need a different charger. All the info you need is here http://www.trialscentral.com/forums/topic/34845-oset-batteries-lithium-lipo-conversion-directions/

each of the 8 batterys's has 6 cells so 4p will still be a 6s when you series them this becomes 12s so a total of 12s4p . The charger you linked to can only do 8s so you will still have to split the pack down to its 6s4p packs . There are only a few 12c lipo balance chargers on the market that will let you treat a 12s lipo battery as one big battery and HK dont sell one :-(. They do however sell a dual 6s 400w balance charger http://www.hobbyking.com/hobbyking/store/__20613__Turnigy_MEGA_400Wx2_Battery_Charger_Discharger_800W_.html you will need at least a 20A psu to power this charger but will still require you to split down your battery into the 6s4p packs to charge separately.

Oh I forgot, there is also something called a throttle tamer that is very tunable and I dont think the cost is to bad, the down side is the guy that makes them dont have a web site and makes them in small production runs ( I think the price is around £30 ) its not a true torque control but it will do exactly the same thing as the picoamps device at a fraction of the price. if you want more info drop me a pm and I will give you the details on how tocontact the guy. Edit: the throttle tamer is referenced in this thread http://www.trialscentral.com/forums/topic/44194-full-sized-e-trials/page-4?hl=%2Bthrottle+%2Btamer#entry339163 about halve way down the page.

http://www.ebikes.ca/shop/ebike-parts/cycle-analysts.html , It is not 100% plug and play for the oset .. you will have to swap out the fitted plugs on the ca to the same type on your throttle and you will also have to install a shunt into the main wiring on your bike, but this is straight forward.. there are a lot of functions on the ca that you may not want to use but the main connections that need to be made are throttle in/out,shunt and power. There are a couple of places that sell these in the uk for around 120 mark with the shunt. You will need at least a version 2.3 to get torque control options.

There are a couple of idea's in this thread http://www.trialscentral.com/forums/topic/39515-snatcy-throttle-on-36v/ the picoamps device is sooooo over priced and it do not control torque... as there is no feed back from the motor current, all it does is induce a slow ramp up of throttle movement but ramps down real time with throttle. A device could be made from a hand full of components at a cost of no more than £5 ..or you can try a really basic solution that requires on 2 components ( a RC filter ) at a cost of maybe 50p and this may be just enough to smooth out that initial power but its something that you will have to experiment with .. If you require a true torque control throttle response then there is a off the self device that can be bought for around £100 which is still very expensive but will work 100% as a torque control. Some have solved this by replacing the stock controller with a kelly controller , but this only improves things because all it does is induce the slow throttle ramp up and instant ramp down ( same as the picoamp ) that is built into the controller.

This is true, its not a regular looking trials bike but is not really mountain bike either ( you can not pedal it as the e-tricks in the vid only has foot pegs ).. more just a regular electric powered light weight, very well thought out and made E-motorcycle ... ... what exactly qualifies as a trials bike anyway :-) , Trials is more about what you are doing on a bike not what the bike is.

The e-tricks have been around for at least 3years :-)... so nothing really new there except that have more options now... and from the spec of the free ride and videos that I have seen of the free ride in action, there is no way it has twice the power of the oset 20" ( it may this on a spec sheet but it dont make it true )..

I think the price is around $3,000 - $3,500 for the entry level and you will get way more longer runtime/range than a racing oset, The standard battery in the e-tricks is 18ah as opposed to 10ah in the oset and the e-tricks is bit lighter than the oset,, butperformance on a stock e-tricks will be way down on the oset 20" , if performance on the e-tricks were tweeked upto/same as oset 20" you will get approx 0.5 runtime/range more.

Its not worth just changing the motor you will have to change the controller also... its the controller that delivers the power whether the motor can cope with it or not..

from the sounds of it you may have a faulty throttle , if I am reading it right. may be worth while trying to get hold of another throttle to test with, it dont have to be a oset throttle , any hall throttle will be good enough to test with. Have a look through ebay and look for hall e-bike throttles and find one that has 3 wires ( this makes it a bit easier to wire it up into the oset )

yes a home built lipo pack can be cheaper and more powerful for the same price. There will be no real benefit switching to a brushless system if your brushed system is working well. I would consider a brushless conversion if either the controller or brushed motor needed replacing due to a fault. Out of interest, did cyclone say how much the motor costs ?

The batterys you have linked to will not be able to deliver the current needed for the oset, these are more for standard low powered e-bikes. If a 72v battery was used then you will have to upgrade the controller and unless you want more speed not really worth it.. converting the oset to brushless will be a lot more work and expense ( controller/motor ) and mounting the net motor into the same place where the exsiting motor is. The article is very well written but I would strongly advise never running no more than 100V on any bike especially how this guy has done it, also always P the smaller battery's first then S them to get the desired voltage ( opposite way that this guy has done ), there is a very good reason for doing P first S second. I would like to echo the warnings about bulk charging lipo's ( but many do it, myself included ) you 100% need to know what you are doing and why your doing it!!. edit: the earthX batteries are a very good drop in solution... that takes away all the guess work, But they are about 2x the size and 2x the weight of lipo.. but smaller and lighter than lead.

I also hope they get the funding and go into production but I will not be getting one :-), if I had the money for this sort of e-bike (off the self) then I would get a SEV etricks

yes the battery you linked to in hobbyking will do the job, you will need 4 batterys configured to make the 48v 10ah battery ( 44.4v 10000mah ) connect then as in the below diagram to get to the desired voltage and Ah's the other ebay battery will not be suitable for these bikes as the max output current they can deliveris only 40A which is to low for off road ebikes

to have a 10ah 48v you will need 4x6s1p , if you want more run time and you are happy with the power and speed then you need the same voltage but higher ah's so to double the run time then you need 2x the ah's i.e 20ah 48v and to achive this you will need another 4x6s1p batterys.

what voltage is your current battery ?. 24,36 or 48