Tranny gears for DRR?

[JustinBoots]

Alright, I'm still somewhat new to these mini quads and I'm hoping someone can help me out here. I'm building a backup motor for my son and daughter to share....its a 70cc Apex motor that I bought. The Gear Driven seems really tight...like I can barely turn it by hand. Then when I tried to install the main gear 11/31....it just won't fit. I know its not a bearing clearance issue because if I pull 36T Gear Driven out I can insert the main axle with no problem. I was assuming Apex and DRR gears were interchangeable, but maybe I'm wrong? Do I need to order gears from Apex?

[mudracer89]

can i get some pic you can tex them to me 1-605-933-0324

thanks scott

[mmsoup]

You have a 50/70cc Drive Axle (36T)

and a 90cc Main Axle Comp (47/11)

The driven gear (Clutch rides on) for the 50/70 is 13T for the 90 it is 15T

So to run the High Speed 90 gears:

47/11 Main Axle Comp
31T Drive Axle
15T Driven Gear

The 50/70 gear set:

48/12 Main Axle Comp
36T Drive Axle
13T Driven Gear

You CAN NOT mix and match

Do you have a bronze bushing in the transmission tunnel or bearings?

The Apex's were shipping with bushings for the last couple of years and while durable, the bushings had a tendency to tighten up. We always removed and went back to bearings for the power transfer.

[JustinBoots]

Wow just saw this got dug up from a while back. :) I'm good now and no I'm running the upgraded wide roller bearing now in the case.