Steering ratio information for GEM e2

GEM Forum
1

Does someone know the steering ratio for the GEM e2?

Thanks

2

its different for different years

4

Do you have steering ratio info 2018 GEM e2?

5

I found our GEM e2 is 2018. Do you know the steering ratio for 2018 GEM e2.

6

If you have a 2018 turn the wheel and see!:thinking:
Or do you need exact engineering information?

7

I already measured the wheel angle and steering wheel angle. I found the inner angle of two wheels are different (also the ratio, which shouldn’t be). It might be due to the measurement error.
So, I want to know the exact information.

8

I see what you mean. Not as easy with rack and pinion.
I would use the average.
Wheels need to turn a different amount for corners, toe-out on turns.

9

I also calculated steering ratio from the turning radius given from the GEM e2 official webpage.
The result is frustrating as it is different with the ratio from the measurement. When I measure, I measure different angles, and took average.

Do you know if I could get the ratio information from the manufacturer?

10

I don’t know how they would state a ratio.
Degree of wheel per rotation of steering wheel?
Inches of rack travel per rotation?
Turning radius per rotation?
Whichever way it’s stated can be measured.

11

Rack and pinion ratio of older Gems.
NEW POLARIS 1824023 ASM Steering GEAR 90 DEG 1.34 RATIO
Assume inches?

12

I only need maximum wheel angles (inner and outer), I already have maximum steering wheel angle from CAN message.