Waterproof 7/8″- 1 1/8″ Handlebar Luminous Dial Motorcycle Clock for Dirt Bike Motocross Yamaha Kawasaki Honda Suzuki Harley Davidson (Black) by PerfecTech

So far, very nice and attractive clock. We’ll see how well it keeps time and how well it stands up to bicycling vibration and shock. No instruction sheet so here is what you do with what you get:

(1) Pull the knob out to set the time; then push it back in. Just like a wristwatch if you know what those are.

(2) Peel off the paper on the two rubber strips and apply to the case and bracket grooves. The radius of the grooves is larger than any handlebar, so these strips are needed to grip and avoid scratching up the handlebar.

(3) A thin double sided adhesive disc is provided. It has no purpose. You can either (a) throw it away, (b) remove the paper on one side and stick it to the bottom of the case, or (c) use it as-is between the clock and case. There is nothing wrong with having a thin gap there.

(4) Drop the clock into the case and rotate it to where you want it. Secure it with one of two set screws provided. (The second set screw is a spare.)

(5) Align the case and bracket on the handle bar and tighten with either the long or short allen head screws, depending on the diameter of your handlebar. Be sure to position the case such that you have access to the set screw with the small allen wrench. Note: the set screw threads are not straight threads. They or the threads cut into the case are slightly tapered. Thus the set screw goes in tight and WILL NOT back out with vibration. (Somebody did something right! Straight threads would have rendered this thing useless.)

(6) Position the clock in its final position and tighten the allen head screws evenly with the large allen wrench, compressing the rubber strips. Voila, a beautiful clock!

Another reviewer has posted excellent instructions for changing the battery.

Note: This appears water resistant (can tolerate splashing or a sprinkle) but I doubt it is waterproof. There is no gasket around the bezel, though one could easily make one. It is not sold as waterproof.

Why did you pick this product vs others?:
This is perfect for me , my bike. I have a Honda shadow ACE 750 which is perfect for me , but I missed having a clock. This one had good reviews and was priced very reasonable. It has a high quality look and feel , installation was simple and styling goes well with my bike. The clock itself installs into the mounting piece with double sided tape AND a set screw so it is solid and the tape eliminates any rattle or vibration. Seems to keep time well also which afterall why buy a clock if it doesn’t. I’ve had it about a month ,but so far so good.

fitts well looks cool correct time

I like the red and black color combo, because it matches my red and black ebike very well. I like the green luminous second, minute and hour hands, as well as how all the numbers are luminous in green. It was very easy to assemble and mount on my ebike. The reason I gave it 4 stars versus 5 stars, was because it didn’t come with any owner’s guide to explain important things, such as when and how to replace the battery. How do I know whether it has any warranty? I don’t! It also came with 2 small threaded studs, which I am not sure what they’re for. They are in the one photo. These studs can be screwed into a threaded hole with that very small Allen wrench. I screwed one of these studs in the hole. I can only guess that this threaded stud secures the bike watch somehow, but I am only guessing. A owner’s guide would be helpful, especially one that showed the warranty policy and provided a phone number and email address.

Good little addition to my handlebars. Don’t take up a lot of space and functions as it should….so far. It comes with 2 separate sets of bolts for different sizes of bars, a good thing, my bars are thick. It’s Pleasing to look at and built with care. I think it is supposed to glow in the dark, but I didn’t notice. Who’s looking down on a bike enough to see, not I. Heads on a swivel driving with some of these maniacs on the road. When I’m stopped I look and can see it just fine(during the day). Seems to be keeping time right with the phones. No complaints, ah, except for that glow-in-the-dark thing. Well worth the $. If I needed another somewhere, I’d get this.