Winter bike / Snow bike thread

Its a 44 bikes big boy http://www.44bikes.com/44bikes_bigboy.html

Agree with SF with the forks, definitely my favorite fatbike so far.

http://farm9.staticflickr.com/8492/8316081050_35e65b85c1_b.jpg

^ that red fat bike - bazinga!

Ahh. Not Fatback forks, but WhiteBros.

Point still stands though. The tubes shaping, and candy apple red finish are top notch!

Tried to achive the same striaght line from dropouts to headtube with mine. Think I have a 178 deg seatstay to top tube angle though. Meh, close enough.

A few folk on the MTBR forum are pushing for carbon fat rims (say 70mm wide). I wasnt convinced untill some bright spark mentioned having them with an aero profile to shead snow. A couple cms of snow on a fat rim is gonna weigh a fair it I guess. hmmm carbon.

some bright spark mentioned having them with an aero profile

I don't think 'aero' is much of a consideration (to do anything useful behind a 4" tyre, the depth would be so great that they would meet in the middle :-) ), but a triangular section would not only reduce snow (or, lets face it as we're London-centric, mud) build up, but would stiffen the wheels up a good deal for little extra weight by shortening the spokes and improving the bracing angle.

e.g. velocity Dyad profile blown up to 72mm wide x 70mm deep

1 Attachment

A few folk on the MTBR forum are pushing for carbon fat rims (say 70mm wide). I wasnt convinced untill some bright spark mentioned having them with an aero profile to shead snow. A couple cms of snow on a fat rim is gonna weigh a fair it I guess. hmmm carbon.

I remember the CX folks talk about similar advantage with the deep v rims to go through mud easily.

the tyres are called Husker Du? It gets better!

I don't think 'aero' is much of a consideration (to do anything useful behind a 4" tyre, the depth would be so great that they would meet in the middle :-) ), but a triangular section would not only reduce snow (or, lets face it as we're London-centric, mud) build up, but would stiffen the wheels up a good deal for little extra weight by shortening the spokes and improving the bracing angle.

Meant aero style shape, not so much the properties.

Weight is a consideration though, and if you drilled out dyads you'd get snow stuck in the hollow.

I like the idea of drilling the feck out of some 'dyad style' 80mm rims, then vinyl wrapping them.

Wouldn't a variant of the Tioga/Sugino tension disc be the way to go?

If you staggered the nipple hole drilling then you could move the disc beyond the [technical term for the holes down the middle] on each side so no snow would build up?

my ride today in switzerland. hipster sled as fuck

^^No spoke bracing angle if you do that. I reckon a crabon fribe blown up Dyad could be done at about 1200g with constant thickness walls, less if you replicated Mavic ISM by varying the lay-up plies, but that would be costly both to develop and to manufacture.

There's also the problem of being blown around because of the wheels. It's bad enough on the road without adding snow to the mix.

^^No spoke bracing angle if you do that. I reckon a crabon fribe blown up Dyad could be done at about 1200g with constant thickness walls, less if you replicated Mavic ISM by varying the lay-up plies, but that would be costly both to develop and to manufacture.

This seems to be an issue with some fat wheels. On a Graceful fat sheba rim the spoke beds are 25mm apart (or something). If you build these up with a 100mm front hub with disc mount. You get feck all in the way of bracing angle. The new fatbike from On-one has a couple of mm between the beds, and then the spokes are crossed (across the plane of the wheel). This is a much better design. Even with a 170mm rear hub. The bracing angle isnt exactly massive.

My front wheel is offset, so I' want a fat carbon version of this profile, just change the depth to 45mm, and the width to 80mm....

There's also the problem of being blown around because of the wheels. It's bad enough on the road without adding snow to the mix.

If you're going to get blown around, it's likely to be the 100mm tyre that's catching the breeze, not the 60mm rim.

Meanwhile in England:

1 Attachment

I was replying to Dammits idea of using the Tioga/Sugino tension disc

I hadn't realized this was a thing, like on groomed trails. looks like fun!
https://www.youtube.com/watch?feature=player_embedded&v=wAmfBripnCA

[/IMG][/IMG]

Switched over to CX tyres on my Steamroller last weekend.

And took it out in the forest yesterday. Long drop caliper brakes seem to have enough clearance, but the light road gearing (64 GI) feels far too heavy off road in snow.

Also thinking of buying a Ritchey WCS cx fork to run on it.

light road gearing (64 GI) feels far too heavy off road in snow.

I was using 39/22, about 47", and that was about right on well compacted piste but still a slog in the 3-4" of powder.

Fitted the bike with Schwalbs Marathons 700 x 28 and had a nice time riding around. I dont think i can do the 13 mile commute to work tomorrow as I'm worried the 8 mile on segragated bike lane (CS3) going to be icy as hell :(

I dont think i can do the 13 mile commute to work tomorrow as I'm worried the 8 mile on segragated bike lane (CS3) going to be icy as hell :(

Then don't ride on CS3 instead.

No point in riding in a bicycle lane/path when the road is usually clear of such snow.

Did some offroad but that turned out to be a bad (tho still entertaining) idea.
Also fell off roughly one thousand times drifting round corners on empty roads.

Meanwhile on Lake Michigan…

http://25.media.tumblr.com/1b595eae5a3489c9cb81a633a8552bdb/tumblr_mgu1mbhmRJ1qzn2wro1_1280.jpg

Did some offroad but that turned out to be a bad (tho still entertaining) idea.
Also fell off roughly one thousand times drifting round corners on empty roads.

From riding with you that appears to be your normal ride to stack it ratio.