In the interests of full disclosure, I grew up in Southern California, which is famous for it’s mild weather. I now live in Kansas (Central USA), where there are only several light snow days per winter. So the information here is advice from friends and also what I’ve read (I read a lot). So, that being said…here goes!
I’ve thought about collecting some helpful tips and writing an article on winter riding, and I recently found a Russian E-bike forum that was full of pictures from enthusiastic builders who are forced to ride in the snow often.
If you want to skip to the Too Long; Didn’t Read (TL;DR) version…here it is:
Use fat tires or stay home,
2WD is king, and front wheel drive is acceptable (front-wheel-drive + pedaling = 2WD),
Fenders are your friend
A low seat puts both your feet flat on the ground, and finally
Extra water-proofing over the battery enclosure is required. (see pic above…pic courtesy of “snoag” from the Russian website electrotransport.ru)
Here’s a pic below of a fat-tire E-bike that has 2WD from a builder in Russia, a place that is famous for their long winters. In Teklektiks 2WD Mundo build, he told us that when you have 2WD, then each motor doesn’t have to be as big as compared to a single motor system, in order for the bike to have very good power capability.
He also mentioned that since geared hubs freewheel whenever they are not powered. this makes them perfect for 2WD E-bikes (because sometimes you only use one motor, or you are just pedaling). He also made sure to mention that…if both motors are identical, it will simplify any power-imbalance handling issues, compared to using a large motor paired with a smaller one.
Below is a pic from Louis in Sweden. He has used many different types of gloves when riding in extra-cold weather. Thick gloves are warmer, but they make feeling the controls and buttons difficult. Thin gloves are cold, especially with the wind blowing on them. His clever solution was to cut off the insulated legs of some old snow-skiing pants and tie-wrap them to the handlebars, to cover over thin gloves. This idea works fantastic!
Here’s a similar suggestion from an “instructables.com” tip, where two one-gallon (3.7-liter) tea jugs are cut. and fitted over the handlebar grips. A screw through the outer end (the flat bottom of the jug) into the ends of the grips will hold the jugs in the proper place. You can buy professional ones that are ready to mount. called motocross “brush guards”.
There’s a couple of ideas to give tires better traction that keep popping up in forums. Here’s a pic of a cheap and fast method to add a little extra traction:
Also, you can keep a set of fat tires with metal studs in them to help when you pass over a patch of hard ice.
If you want more studs than this (or you just want to save a few bucks), consider experimenting with adding screws to an extra tire. ES builder DrkAngel posted this. Made sure to include the suggestion to add some construction-grade adhesive to the screw before screwing it in to the holes you have drilled. He lives in New York, where snow and ice on the roads are very common every winter.
Here’s an awesome video of an electric “ski bike” in action…https://www.youtube.com/watch?v=jtjCSqBFjSU
Send me your SNOW E-bike pics and tips, and I just might add them to this article. You must join endless-sphere.com, and then as a member, you can send me a “Private Message” (PM). My username is “spinningmagnets”
edit: Only one intrepid E-biker who lives in snow has responded so far. From new ES member “ripmobile” who lives in St Louis: “…I use motorcycle gloves…they work most of the trip, though I usually get a bit cold at the very end. My jacket is the famous [military surplus] Alpha N-3B flight parka…never found a better winter biking coat. The hood is awesome, and a stretchy face hood or balaclava keeps the head warm…”
In retrospect, I promoted FWD in this article, but I did not emphasize an important aspect of using a front hub: use TWO torque-arms on the front hub. Steel fork drop-outs (Cromoly is the most desired steel for fork drop-outs) are the best materials for a front hub, but regardless of material, use TWO torque arms. Its not like they wear out, you can own them forever. Steel drop-outs might spread-out and allow the axle to spin, but the worst thing to happen is to be traveling at a decent speed and have aluminum drop-outs experience a “catastrophic failure” (see pic below)…use two torque-arms on the front, period.
Written by Ron/Spinningmagnets, December 2013