I think I will carry mine in my backpack too. I tested it out by sitting on the bike, and it's not going to work, The thick part of the lock hit my leg just below mid thigh. DT shifters, so it can't go on the DT without causing interference, and on the top tube it will squeeze the brake housing. Maybe on the rack, but I also run a Nashbar trunk bag a lot of the time. The bike has no rack right now, but will get fenders and a rack someday in the near future. It's too nice not to be ridden regularly.,,,,BD
NICE Jamis. I lusted after that color/model for a while. The Brooks looks right at home on that black seatpost too!? Never would have guessed that would be the case

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79 Trek 510....