The current ratios are higher than the Sand Spider, and I ordered the lowest current ratio, the primary ratio is also higher than the 83 (65/33 vs. 66/31), and the lowest gear ratio (I just ordered from Koestler) is 2.28 vs. the sand spider which is 2.36 (and is still high). The default ratios on the 700's are like 1.96 or 1.86. So they are quite fast.
The gear ratios being custom made depends on how they get their supplies made, they make limited bikes but they would still order the gears in bulk, so depends on how expensive it would be if they did it for a single person. Secondly, it also depends on what they are marketing these bikes for, I mean mostly they would have the gear ratios right for anyone doing motocross. It's just for trail riding I would like different ratios (and this is just me, who knows how others would ride and for those doing enduro their gear ratios are probably right for them already, they don't really offer a "trail" bike per se aside from Enduro.)
My KTM 495 is almost ideal for the gearing. Essentially I would want a Low first gear, like Trials low, walking speed off idle at the power. Second gear would be same to slightly lower than normal first but still have some speed. Third would be 2nd, 4th would be normal 3rd gear, then 5th (or even a 6th) could be an override for example.
It's hard though to just say I want x ratio because need to ride the bike, understand how it behaves at varoius RPM to see where the ratios should be under the considtions I want (and have to see how the gears flow between each other since want a smooth transition and not large jumps that loose power). This is why just allowing anyone to have custom gear box is impractical. I mean even for me I know what I want but I still would need to experiment to get it perfect, hard to must map it out on paper. I mean my KTM 495 ratios may not work because the power spread is differnt so I can't really use it as a complete model even.
