Brake torque. Must be positive.

	// brake the wheel
	collider.brakeTorque = 1000;

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        collider.brakeTorque = 1000;
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		collider.brakeTorque = 1000