The front sprocket lock tab has six sides you can bend. As long as it’s there, you have a side to bend. 650 Central has the lock set for the rear or did two weeks ago.@Jim Do I need one for the rear too? This just says for front. Any other washers or secret things I wouldn't know about? I looked up instructions on how to replace online and I don't see any other weird parts but want to be sure...also didn't say anything about the lock washer so there's that