Single speed conversion with Ultramaxx gears

[Toon]

Has anyone tried the Gorillamaxx single speed conversion with the Ultramaxx alloy transmission gears?

I have a generation-1 set of the Ultramaxx gears, but I am having a problem installing the coupler into the 2nd gear.




As you can see, the coupler has straight edges at the top/bottom where it slots into the 2nd gear, which fit the stock gear perfectly. However, the Ultramaxx 2nd gear has rounded edges, meaning that the coupler will not fit int the gear without some modification. I don't have the facilities to modify the gear/coupler so that they will fit together properly, so I am a little cheesed off right now TBH. :M:


So I am basically left with two choices: use the Ultramaxx gears and stick with the 2-speed tranny, or use the single-speed with a stock 2nd gear, and an Ultramaxx/UE/stock idler.

I get the impression that the UE idlers are very hard to get hold of, but a stock idler wouldn't last long with 9L power. It seems a waste having the full Ultramaxx gear set and only using one idler gear. Does the tranny still need to be greased if I am using the stock top/2nd gears, and a metal idler?