- #1

- 167

- 7

If I put wheels that are 24 in diameter, so 4% smaller, what exactly will change ? Will I have 4% more torque ?

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- Automotive
- Thread starter Nick666
- Start date

- #1

- 167

- 7

If I put wheels that are 24 in diameter, so 4% smaller, what exactly will change ? Will I have 4% more torque ?

- #2

- 2,017

- 85

You'll have exactly the same amount of torque. Something will change at the contact patch through.

- #3

- 167

- 7

- #4

- 167

- 7

Ohhh...its F=T/r ... I get it now.

- #5

- 29

- 1

If F is the ground force on the wheel then T- F.r = I_{G}.α

- #6

- 26

- 0

Also your rpm changes. The circumference (pi*D) is less on the smaller diameter.

- #7

- 11

- 0

So when you are considering change in tyre dimensions assume it constant. so for changing wheel selection following things will occur.

in this case your tractive force will increase..

tractive effort= Torque/tyre radius (dynamic rolling radius)

say you have 100Nm of torque which is constant

now you used 25inch tyre= radius=0.3175m

so tractive effort = 100/.3175=314N

Now you used 24inch dia tyre=radius=.3048m

so tractive effort = 328.08N

so basically your tractive effort increases which can help you to climb gradients..

you can calculate percentages.

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