nuvinci continuously variable transmission

At the time I thought I might need to oil the shifter again, but in turned out to be mainly the derailleur which was stuck from all the grime. Due to cold and wet conditions my 3x7 speed Shimano system (on an old but in perfect condition being Koga-Miyata World traveller) didn't work very well. That was precisely what had been bothering me the week before.

First impression on a short ride: A very interesting feeling, along with the realization that bad gear changes are impossible, so there's no rattling noise when the derailleur doesn't precisely change the gear to the wanted cog (which you must solve by going up an extra gear, then back down again, or vice versa, etc.). Hill = small gear to go up a hill (or of course to accelerate), flat = large gear to go fast on flat terrain.ġ. The twist shifter has an interesting way to indicate the gears, namely with a variable height hill. I also weighed my trusty Koga-Miyata World traveller from 1992, which came to ca. This Batavus bike is very nice to look at, see the pictures. Tested bicycle: Batavus Sc2, 61 cm (a little too large for me, which gives me rather too stretched out position as I really like a short top tube or forward seatposts such as an old Speedliner triathlon seatpost. Size: width: 135mm over-locknut dimension, diameter: 159 mm.ĭimensions for spoke calculation: For Sapim spoke calculation page: K=135, Ka=39, Kb=40, D1 gear=147.5, D1 non-gear=147.5 The NuVinci N171 (original version, available since 2008) Specifications (of the loose hub): : Addition: The Nuvinci hubs have been renamed to Enviolo in 2017.

NuVinci N360 (lighter and lighter gear changing, 2010).In the newer N360 these issues have been taken care of (mostly). 2008) is a great hub (even though it is heavy), but for me the shifting is too slow and it's hard to change gear at low speed while pedalling with force.

The NuVinci (later renamed Enviolo) continuously variable transmission for bicycles [ Main index » Bicycle parts examined » Transmission types and number of gears » The NuVinci continuously variable transmission for bicycles The NuVinci (later renamed Enviolo) continuously variable transmissions for bicycles

Nuvinci continuously variable transmission