Mike TowpathTraveler
Well-Known Member
Having read this entire thread, my thoughts are with Mr Berry in getting his R&M repaired, and soon.
I just looked over the Cycle Monkey page on retrofitting an E14 shift system and got to thinking how we are going down this slippery slope of cutting edge technology stopping us in our tracks when these issues are going to come up. In the case of this system, this proprietary system eases the torque applied when pedaling to make an upshift or downshift with an eye to saving the drive gears from shock loading. Understandable when we are looking at a motor that could be putting out 500w of power at the time of the shift.
All carefully analyzed by the Bosch and Rohloff engineers to where one shift is completed in a mind boggling 200 millieseconds! Of course, the one aspect not carefully analyzed by the engineers was making things so complicated that only a qualified dealer specialist can troubleshoot and make the repairs, not the bicyclist alongside some road. And when that qualified dealer specialist with specific Bosch/Rohloff Factory Training goes on vacation, well..............
This is the road these manufacturers are taking us down, with their e-shift systems, sealed internal geared hubs and anti-lock brake system that can only be opened up and repaired by competent, qualified authority.
To think, not long ago, a derailleur and internal gear hub drive system on a bike was activated by something so rudimentary and old-school, called a steel cable!
I just looked over the Cycle Monkey page on retrofitting an E14 shift system and got to thinking how we are going down this slippery slope of cutting edge technology stopping us in our tracks when these issues are going to come up. In the case of this system, this proprietary system eases the torque applied when pedaling to make an upshift or downshift with an eye to saving the drive gears from shock loading. Understandable when we are looking at a motor that could be putting out 500w of power at the time of the shift.
All carefully analyzed by the Bosch and Rohloff engineers to where one shift is completed in a mind boggling 200 millieseconds! Of course, the one aspect not carefully analyzed by the engineers was making things so complicated that only a qualified dealer specialist can troubleshoot and make the repairs, not the bicyclist alongside some road. And when that qualified dealer specialist with specific Bosch/Rohloff Factory Training goes on vacation, well..............
This is the road these manufacturers are taking us down, with their e-shift systems, sealed internal geared hubs and anti-lock brake system that can only be opened up and repaired by competent, qualified authority.
To think, not long ago, a derailleur and internal gear hub drive system on a bike was activated by something so rudimentary and old-school, called a steel cable!