Recent content by Harold25

I'm tired of replacing the gears on the chinese planetary gearbox motor and the cassettes/internally geared hubs. I'll be looking into a more reliable solution from now on.

Yes, so I might try my hand at a 3 speed hub when this one blows up.... Otherwise it's back to a casette, and replacing chains and gears every so often. I guess what we really need is an internal transmission that goes with the motor setup. I think 4 gears is all you really need at this power...

My sturmey 5-speed doesn't seem to be taking the power very well. This was expected somewhat. 4th gear sounds like it's going to go and 3rd might not be far behind.

I'm running 60a peak @ 48-52 volts. I get a weird noise going into 3rd right now. I don't change gears while the motor is running. I only change gears while pedaling, so I'm not sure what's going on, it might have something to do more with the chain-line. I've noticed the chain-line moves...

I meant the previous model 5-speed.

Did you line up the yellow line with the red line on the hub when installing it as per the manuals instructions for vertical dropouts?

It's exciting but still un-proven. I'd like to discuss the changes that have been made with the newest 5-speed compared to the previous model. I can't find much on the previous model though.

Sorry no build post. I think it runs 60 amps peak at 48 volts. It's a 1600 watt kit though.

Also, I've looking at the diagram of the Rx-Rk5, and I'm not really sure how the gears are selected, or where the load paths are going. It would be nice to compare to the previous model. http://www.sturmey-archer.com/files/catalog/files/85/PART%20LIST%20-%20RX-RK5.pdf

I ended up just going without a tensioner or derailleur. It's a 1600 watt cyclone kit basically, and 44t chainwheel up front.

After reading the Sturmey Manual here: http://www.sturmey-archer.com/files/catalog/files/85/MANUAL%20-%205%20SPEED%20ROTARY%20HUBS.pdf I can see there have been some mistakes when installing it. It says in the manual Step 4: ) "If the bicycle has reversed or standard rear fork ends, rotate the...

Another question though. How are you supposed to shift these Internally Geared Hubs? I never shift under motor load, but I heard somewhere that they only actually shift gears when the hub is off-loaded. Before I had an internally geared hub, I had a standard 9 speed cassette, and I'd shift it...

I solved the problem by not using a derailleur or tensioner. It's pretty tight, I just hope it doesn't break something.

Regardless of kog size, 1/8" chain should work for all these components.

I'm using the cog it came with... and the front chain ring is 3/32. 3/32 chain would not fit the rear cog