The only option for a Class II hitch on your 2021 Chevy Bolt EV is the EcoHitch # 306-X7359 with a 2" receiver. Any hitch with a 1-1/4" receiver like the # 24956 is Class I. If your bike rack is Class I compatible the Draw-Tite will be the better option. More than likely it requires at least Class II if it has the capacity for two e-bikes.
You can use an adapter like # C45770 with the EcoHitch but it will reduce your capacity by 50% so that isn't a good option. You may be faced with getting... view full answer...