Will this work on Invacare Tracer SX? Rim Is 21 1/2" OD - 9 mounting screws @ 21".
It may possibly work on your Tracer SX, but we'd need your wheelchair's serial number to confirm the compatibility. Please give us a call at 1-800-798-0325 or email us at contact@monsterscooterparts.com to provide the serial number, which can be found on the cross brace under the seat. Once we can run your serial number, we'll be able to tell if this hand rim will work for you or if there's a more compatible option.