The recent purchase of a mountain bike with disc brakes, I was able to put into practice an idea long ago view on the internet (with some additions and modifications).
That is to equip my mud tires with snow chains.
After the experience with studded tires (very good), I wanted to experience this second option to ride a bicycle on ice and snow.
Materials and Methods.are needed:
-about 6 meters of chain twisted galvanized 3 mm. (price 2,25 € per meter)
-a pack of 100 strips 280x4, 5mm. (price 2,99 €)
Place a chain for each space between the spokes of the wheels using a plastic tie as firm.
It is better not to fix the chain at the point of the rim where the valve comes out of the air chamber.
The band passes through the two ends of the chain and on the inner side of the rim goes to close the chain.
It can easily adjust the tension of the chain according to the pressure of the tire.
Once the straps tight you cut away the excess plastic ends.
Time required for assembly:
about twenty minutes to cut the pieces of chain.
about thirty minutes to fix clamps and chains on the tires.
it is better to leave a little 'end of the strap so that you can further tighten the chain if you want to lower the tire pressure.
On packed snow thickness of about 15-20 cm: excellent grip and traction even on stretches of bare ice, safe braking and starts immediately (tire pressure about 3.5 atmospheres).
On thick Snow (about 1 meter thick) it is advisable to lower the tire pressure to two atmospheres, otherwise the rear wheel traction tends to "dig" the snow, alike downhill to a certain speed the front wheel tends to "float" the snow and lose stability.
A preliminary assessment of the compactness of the snow layer will allow you to set at best your tires (pressure of the air chamber) and your chains (tension).
With the same system (strips and chains), you can also mount on the mountain boots snow chains (it takes about 11/13 chain links).
It is very useful in the sections where you have to push the bike.
ConclusionsIt is definitely a good way to go with the mountain bike on snow.
Advantages: limited cost - speed and ease of assembly
Disadvantages: once installed (if you do not have two wheels) to be able to use the bycicle on the asphalt, you have to disassemble everything.
I'm studying a system with a steel cable and two rubber rods to make the whole thing assembled and disassembled at will.