Sobering, isn't it? Having had the good fortune to blow a few tires off alu rims also while coming to a stop, we must salute our good sense! Way to go. Solution for alu rims turned out to be deep rims and a drum when touring in the mountains. 2 lbs. extra has not been a consideration for us when touring. I like your solution also. Our frame doesn't have the ability to mount a disk.
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