Coupla questions...

rustydusty

rustydusty

Member
I recently installed a "torque arm" on my front hub drive beach cruiser, and am wondering what this piece is for. Obviously it fits over the axle, but wouldn't do anything to prevent it from spinning in the drop outs. Can't imagine why you would need a spacer...
Second question: is it safe storing my batteries (we have two ebikes) in the house over the winter? I'd rather not leave in the garage, with freezing temperatures...
20210104_113203.jpg
 
That spacer is useful only for bikes that have too wide a fork. Pretty rare, most frames are standard.
I leave my battery in the garage in the winter. Remember the Boeing airplane with the hole burned in the side, And the burned hulk of a Tesla on Rodeo drive. I bought a heat pad to put my battery under when it goes below freezing for several days. Unfortunately, new heating pads shut off in 2 or 3 hours now, automatically. Thought the burglar took my old one, but fortunately he just hid it under old boxes.
 
I just moved the batteries back out to the garage. It's not like they were on the charger in the house. I have heard the horror stories, but really?? If they are that dangerous, how can they sell them. Do they just spontaneously combust? Definitely not the only li-poly batteries out in my garage...
 
rustydusty said:
Do they just spontaneously combust?
Click to expand...
Yes, sometimes. Poor quality battery packs, or packs that have been damaged, can result in mismatched cells that setup internal currents that can overheat the cells. If just one cell goes into thermal overload, the pack burns, sometimes explosively. No charger required.
 
Before you get too hasty, 2 things. First, there are only just a few popular manf's making ALL of the cells we use.

2nd, of all the e-bike battery fires you read/hear about nationaly (darn few), discount the home made ones, and consider only the packs that are available commercially. Using that number of fires, if you can find any, then consider the danger of storing them, off charger, in your home.

Myself, I don't give that idea a second thought. If the only convenient spot to store them was under my bed, I would do it. -Al
 
I totally agree. Not that my shop actually gets to freezing. The thermostat is set at 34° so water based paints and glue don't freeze.
 
rustydusty said:
Do they just spontaneously combust?
Click to expand...
The boeing one & tesla in LA ones did. The Tesla in China may have been damaged. Low incidence, high cost occurance.
I don't keep cans of laquer thinner in my house either. Good friend got fired when one of those went off, burned down the bus garage. My financial records & family photos are not in the garage where my LiIon battery is stored.
 
Some forks have a recess for a axle washer, and your axle nut flange might not fit inside, In that case, these C washers help.

PICT0129.JPG
 
Since the forks were intended for 10mm axles, and the hub motor is usually 10x12 mm, you might have to carefully deepen the slot in the fork to get the new axle centered. Hopefully, it's not an alloy fork, as you will have to make a nice round cut to allieviate stress cracking.
 
Red loctite needs a torch, but blue loctite breaks loose with hand tools, but I still wouldn't use it.
 
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