I bought a Kryptonite Keeper 12 a month or so ago, and didn't think I would need the receipt. Well, I went to install it today, and ran into a major snag?? The lock cylinder sticks out too far
to clear the frame tube, when you try to put the lock into the frame bracket? The only thing I can think is that someone in quality control was fast asleep when these locks went out the door. You
can make it clear by mounting the bracket at an angle, but it looks worse than the bracket alone. WTH?? What do I do now? I imagine the locking mechanism was redesigned longer, and they forgot to check if it actually works? I guess I'm going to have to bring my backpack every time I go somewhere I need to lock the bike?,,,,BD

If only the sliding latch could be relocated to the non lock side.... It's a slide on thing with a clamp, so the only way would be to go around the U. AKA: Impossible....

picture?

I'm having a hard time picturing what you're describing, but is sounds like your bike is too small for the lock. This is hardly unusual...u-locks offer good security, but are somewhat inconvenient. I've given up on mounting clamps, since I've never found a design that really works. I normally have a trunk bag or pannier that carries the lock, but I've seen a number of people who simply slide the lock straight into the rear rack, and that appears to be quite effective.

Pictures would be nice, I don't really understand your problem.

But all I know is the Kryptonite mounting brackets don't work that well, they don't slide in and out of the bracket that well, I have even tried greasing it, and its hard to mount it, and my girlfriend did have it mounted on hers, and randomly one day came completely loose, The OnGuard mount is a lot easier to uses,

Just carry your lock, or strap it to your rack, if you have one

i was thinking this might help you on how to mount it to a rack, then strap it a little maybe, to keep it from bouncing around, if you have a fender it keeps it from hitting the wheel, but even if you dont it wont hit the wheel, or make any problem,

Im actually board at school right now, so thats why i made that it MSpaint

Updated with a pic. Sorry internet went out for a while. You can't slide it into the brack, because the lock cylinder hits the frame. the part on the lock is supposed to to slide into the bracket from the top, no way that is EVER going to be possible. Nothing to do with frame size, it's a 60cm so not exactly small.,,,,BD

Here's my guess --

The end of the lock barrel/crossbar is fairly long. When you try to slide the lock into the bracket, this end pushes against the bike frame and keeps the lock from reaching the bracket.

Yeah, that sucks. If you want to keep using the bracket, you could turn it to the rear-side (say, 5 o'clock as viewed from above) and adjust the tab on the lock itself so that it points straight back (I've done this with mine). Or you could hook it to your rack, or hang it from your handlebars, or get a lock block ( https://www.twofish.biz/bike.html ), which also works pretty well.

https://www.kryptonitelock.com/produ...=1000&pid=1108

It may not be the best solution, but could you turn both the clamp and the collar 90 degrees or so so that the wide part of the clamp is perpendicular to the top tube? If you can then turn the collar on the U, you can insert it into the clamp/ holder and have the U running on an angle into the main triangle?
Does that make sense?

Yeah, that does make sense. I think that is very much what I did as a temporary measure. I mounted the bracket completely sideways on the seat tube. The lock is U down alongside the seat tube, angled slightly to the center, going forwards. A test ride will have to see if my leg rubs against it, at which point it's going in the backpack. The HB blocks looks like a pretty good idea, though will be some homely on 1979 a Trek. Maybe I should go back to Houston, and get something more commuterish. I have a C'Dale Enforcement model, that would look nice with some Armadillo fatties. Fenders would be the problem with that one though.,,,,BD

When I had my lock mount on my bike, it was at a 45° angle with the bracket on the lock rotated to match, alongside the seat tube. Worked fine, but I got tired of the rattling, so now I just carry it in my bag.

I did this back in 2007 with my 1st bike. Best position by far (that's what she said). Never rotated, rattled, slipped, etc.

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.

79 Trek 510....

Can you lock it sideways through the bars on the back of your seat? I've seen people do this before.

BTW, bhop that aurora looks too new! Get out and ride!
BTW2, Every time I see someone else post a pic of an Aurora, it makes me want to hug mine!

I should have taken a pic of my lock on the bike when I was using the bracket. Picture it like bhop's and mijome07's except that the bracket is on the seatpost and swung backwards, but still to one side, then the lock points back from there, like it's blown back by the wind. Never got in the way of my leg.

Is your bracket mounted to the seat tube? Have you read the [ahem] directions? (That wasn't me saying that) I suspect it was intended only to be mounted on the seatpost, which is obviously a smaller diameter than the seat tube and therefore may deliver the needed clearance. Here's my setup. I am actually using the bracket from my first Kryptonite U-lock--the one that can be defeated with a bic pen. The bracket that came with the new one was not as user friendly.
rack-snow tire clearance.jpg
IMG_0772..jpg

^^^ That's how I mounted mine.

100+ miles/week for two years is plenty of riding! It looks dirtier in person.

The clamp is almost too big for the 28.6 seat tube, it would never clamp the post. On the directions(one 3/4-1 inch pic), it shows it hanging from the top tube, the way it will not work on the bracket. I also tried it through the seat rails. it won't go.,,,,BD

I used a rubber shim. Don't remember if it came with the lock. It's about 1/16" thick. You could use an old tube but you'd have to fold it a couple times to get it thick enough. The bracket needs to be tight enough so as not to slip, but loose enough to allow you to rotate the bracket on the post for install/removal since it needs to be folded back to be in line with the bike so your leg doesn't rub on it....not against the frame, but close.

by the way...nice marmot

Obviously, you're not a golfer....,,,,BD

That's kinda surprising -- I wonder if yours is different from mine. Mine is toothed on one end of the strap and slides to connect to a nut & bolt on the other, and fits a 27.2 seatpost easily enough. It's been a while since I used it, though, and I can't find it to check how many teeth it had remaining on the strap.

*edit* (now that I scrolled back up and saw your pics) durrrrr, yeah, yours is way different.. lol Not only is that their cheap lock, but it looks like their cheap carrying bracket, too. I wonder if they'll send you a better one, especially if you email that pic to them.

Mine is a squeeze open type, that pops around the post, then it has two nuts and bolts to clamp it down. With a 28.6
OD seat tube, the clamp jaws go flat, just as it tightens down on the tubing. $29.99 is not cheap. 8 dollars for Master
lock and 3-4 bucks for a 2 foot length of chain is cheap.,,,,BD

$29.99 is cheap compared to $90.