Gear Ratio Question

[Dongskie]

My DR currently has 29/31 teeth gears on A & B (see inline photo).


I find it too heavy on dead start and it takes a long stretch before the engine revs up to accelerate, and by the time the engine revs up, its already too fast


Is gears A=25 and B=35 ok? I'm pretty sure I can manage not over-revving the engine


Thanks guys!!

 

[BertR]

The 25-35 gearing is to help the big ass MT tires with gobs of torque. Your DR will top out sooner with the 25-35 but will also help it get with it at a dead stop.

 

[Phill]

My DR currently has 29/31 teeth gears on A & B (see inline photo).I find it too heavy on dead start and it takes a long stretch before the engine revs up to accelerate, and by the time the engine revs up, its already too fast

Is gears A=25 and B=35 ok? I'm pretty sure I can manage not over-revving the engine

Thanks guys!!

25/35 will give you a top speed of only 25MPH

I'm running 29/31/25/25 with a Zenoah G290 with a WT 990 on it and take off is great.

If you're running stock tires you'll find that the front and rear are different diameters which isn't helping anything.

 

[Dongskie]

Thanks Bert, thanks Phil,

I guess thats not bad for me and my son, I'm not really into speed as I play a lot with my 6y/o son and he might not be able to manage the speed just yet.

By the way I have the 2wd DR.

Actually, I was worried about the slippage time of the clutch with the bell during acceleration, I thought that it could be burning the clutch (manual tranny driver here lol).

Thanks Phil, I haven't noticed that the tires are of different diameters. Now taht you mentioned let me have a good look at them .

 

[Phill]

Here's the difference in tyres on stock 4WD

 

[Dongskie]

Thanks Phil!

Btw whats the HPI pack doing under your DR

 

[Phill]

Thanks Phil!Btw whats the HPI pack doing under your DR

Prolly axle boots

 

[Dongskie]

Prolly axle boots

oh i'm gonna need those too for my rears

 

[Phill]

oh i'm gonna need those too for my rears

Cheapest I found was ebay

 

[Dongskie]

Cheapest I found was ebay

Thanks mate! very helpful

 

[Dongskie]

Good day guys,

A friend has tested the gears A-25/B-35 combo and here is how it ran.

Video credits to Agustin RC

 

[Phill]

Is that in 2WD?

 

[Dongskie]

Is that in 2WD?

Yes it was 2WD

 

[Dongskie]

Yes it was 2WD

My bad, not 2WD

it's a 4WD