I am a new member to this forum and looking for a little advice regarding my Shimano alfine 11 hub. I am currently bikepacking through south America and have only put about 1200km on my new hub.
I originally had some teething issues with cable slip but after getting to know the adjustments I have it running really smooth and have had no issues with changing. I changed the oil after 1000km and the rolling and changing gears through the hub is great.
There is one issue that I'm hoping someone may be able to help me with as I am having trouble finding or contacting anyone with knowledge through South America.
Where the chainring attaches to the hub it seems to flex a great amount under load (freewheel?) The hub stays stationary but when you apply pressure to the chainring through the pedal it moves considerably. This is causing a huge loss in power especially now that I am doing alot of climbing, it appears apparent in all gears but in my lowest gears, where you apply plenty of torque you notice it the most. I understand with my frame you get a little flex but there is huge amount coming for the hub/chainring.
It is hard to explain with words so I will attach a link to small video explaining what I mean.https://youtu.be/4gdINxlrICE
I have been traveling with a guy who is running a rohloff hub and have had a ride on his bike and ther is no such issue. I understand the Roloff is a more expensive hub but form the reviews and the tech advice online they should have very similar efficiency, especially in the lower gears.
I am traveling rather light (bikepacking not touring style) but with the way the bike is at the moment I am having a real hard time climbing. I have done over 35,000km tour cycling so understand what to expect climbing.
If you guys are able to have a look at the video and supply some advice on possible solutions it would be much appreciated.