cycling weakly

Hi Peter I have Shimano steps cranks on my Tongsheng. They have a narrower Q factor than the originals so they are not the answer. I don't think you will find any standard cranks with wider Q factor than your originals. If you got your frame as a scrapper why not find another one with a standard BB. Steve

Has anyone on here fitted a BBS02 or TSDZ2 motor into a Specialized Fsr frame. The frame dates from about 2007 & has the straight downtube & standard BB. It measures about 18 inches to top of seat tube. The frame triangle is a bit tight but may just take an HL1 battery. I will have to try one before I buy the bike Cheers Steve

The battery case is HL1. Ideally I would like to stick with that, as I have two 36v bikes & it would be handy to be able to carry a spare for long rides. The 17.4 AH battery with 29e cells that Eclipse have in stock is in an HL3 case. I don't think you can fit 60 cells in an HL1. Apart from The BBS02 36v I have a Tongsheng 36v 500w which I was thinking of replacing with a Woosh 48 volt Tongsheng kit. Hence my interest in running the BBS02 at 48v. I had hoped that fitting a 48v controller would do the trick. I know that Woosh stock 36v 15AH HL1 batteries with according to the website, Panasonic PF cells for 369 GBP I don't know if that's a good price or not, but it would give me interchangeable batteries. Steve.

Thanks for that nealh, but there is some life left in the old battery. So I'd like to keep it & buy a new one. Steve.

Thanks for that nealh. So you think that a 10s 5p with 10 amp cells is better than 10s 6p with 29e. It would certainly be lighter. Can you recommend a supplier. I tried eclipse but they are changing their supplier & no longer have 30q batteries. Cheers Steve.

Hi. What do I need to upgrade BBS02 36v 500w with C961 display to 48volt or would it be worth replacing rather tired Samsung 29e cell 14.5 Ah battery with a 17.4 Ah one with 29e cells. I know that 29e cells are pretty low discharge but would the 10s6p supply more power than the 10s 5p I am using at the moment. When fully charged the motor pulls OK for a few miles but then long hills make it feel like riding through treacle, it is worst at full power . Cheers Steve

Would discharging the battery to below 52 volts do the trick as a short term fix? I use four 35 watt 12 volt bulbs in series to discharge.

I am looking for a good quality HL 1 36 volt battery, I was going to order one from Eclipse with 30q cells but they are out of stock. I wanted the HL1 because I have one on another bike so it would be handy to have two the same. Can you recommend a good UK or at least EU supplier. Has anyone bought batteries from Tech-nic batteries in Bristol & if so are they any good?. Same question about Yosepower batteries. They would be used to power a BBS02 500w & a Tonsheng 500w. Cheers Steve.

With the suspension bottomed out, the motor must be very low. I gave up on the idea of fitting a BBS into a stumpy because of this. Any bike with a modern bent downtube will have the same problem when ridden on rocks & roots. Steve.

I emailed Eclipse to ask about HL1 battery on HL 3 carrier & vice versa. They replied promptly & politely that they are not switchable & also the charger leads are different. Steve.

I have a Tong Sheng 36 volt 500watt motor in a Giant Revolt gravel bike. The battery is a Woosh HL 15 amp hour, which is nearly four years old, it still holds a reasonable charge. The maximum charge seems to be 41.6 volts. Charging has become rather strange. I left it on charge after a 15 mile ride & when I returned there was no light on the charger. I checked the fuse which was OK, plugged back into the socket but not the battery & the green light came on, when I plugged into the battery the light went out & the red light did not come on. I tried again a bit later & the charger came back to life. The battery has an habit of switching off within a short distance when setting off after the power has been turned off. after turning it back on it is OK. I was advised to discharge & recharge the battery several times, which I did by connecting three 35 watt 12 volt bulbs in series & leaving it until the lights went out. It did the same switching off briefly after a few seconds but then coming back on. Should I try a new charger or is it time to buy new battery & keep this one as a spare. If I do buy a battery, are Samsung 30 Q cells a worthwhile upgrade over Samsung 29E. I can Buy a 17.4 amp hour 29e battery for less than a 15 amp hour 30Q from Eclipse are Eclipse reliable sellers? Finally are HL 1 & HL 3 batteries & carriers interchangeable eg. will HL 1 battery fit on HL 3 carrier & vice versa?.

Yes standard Japanese taper.

I have bought a pair of Steps crank arms, to replace the standard Tongsheng items which had a ridiculous Q factor of 212mm. they came with retaining bolts that tighten using a socket rather than an Allen key. Is there any reason why I can't use the original Allen bolts? I don't want to have to carry a socket & bar around with me until I am confident that the cranks are not going to need retightening. Steve.

Why would it only cut out once & then behave itself for the rest of the ride? Steve

I have a Tongsheng motor powered by a Woosh 36v 15ah battery. When I turn on the display everything looks OK. I wait for the Spanner symbol to disappear the motor pulls away fine, but only for a short distance. Maybe 100 metres or so, the display goes blank & no power. I stop & turn back on & everything works fine. Previously I had the same battery powering a BBS02 500w, it would sometimes do the same thing with that, but not every time. Once restarted neither motor has cut out again. Any thoughts on a cause? Yours. Baffled of Burnley.