Cygolite Rack Mount for Hotshot
- Compatible with Cygolite Hypershot, Hotshot Pro, and Hotshot Series bicycle taillights
- Attaches to rear rack of a bicycle (bicycle and rack sold separately)
- Genuine Cygolite mount
- Always use genuine Cygolite mounts, which have been engineered to Cygolite’s precision quality and functionality standards













Mindcontrol –
While I don’t like to rate reviews on shipping I must say that this item came 2 days before the expected time. Excellent. Now, the mount itself is great. If using on a Topeak Explorer rack you will come across some difficulties if you don’t heed my warning. Here is how to install:1. Use a ratchet screwdriver with a 5/16 nut.2. Make sure that the hex portion of the screw is facing in the same direction of the light (don’t place the nut under your Topeak rack).3. Use a 5/16 bit4.. Scrunch your hands and finger tips small enough to get under your Topeak rack and begin to turn.This is made out of a decent amount of plastic. Nothing extremely durable. If I was riding a mountain bike I’d probably have to buy a few more spares considering the bumps a MB takes. For my hybrid I think I should be fine, even though there are those occasional pesky pot holes. My main concern with the plastic is the outer side of the nut. As you begin to tighten the bolt from underneath your rack the outside plastic will being to wrap and strip. Just be sure to not tighten too tight.I use this with the amazing Hotshot SL 50 Cygolite rear back light. I love this combination. I’ve been riding for 5+ years and I’m not sure why I haven’t purchased this combo sooner. I highly recommend this mount.As you can see in the pictures there are 2 options for where you would like to place the mount. I chose the higher area of my Topeak rack so it wouldn’t bump my tire if I hit a crazy hole. Something that hard would probably damage my rim but just in case….
Sean Morris –
Ok, so I’m updating my review as my last one was more negative than it should have been. Originally, i was frustrated with the insanely tight locknuts that I mistakenly thought required two tools to tighten – one to hold the head of the screw and another to turn the nut. In actuality, only one tool is needed. This is because the head of the screw sits into the hexagonal depression on the face of the mount. So to install, it only requires that you place your thumb over the screw head to keep it in the hexagonal depression while turning the locknut.Turning the locknuts are still kind of a pain while the rack is on, as it requires maneuvering either a wrench or hex nut driver underneath the rack. I did happen to have a wrench that was just small enough, but it still required adjusting with every turn. I installed this mount on a touring bike, so I would have liked to see a system that would have been easier to manipulate on the road. I will say, however, that once you have the locknuts sufficiently tightened, it feels pretty bomb proof. I can’t imagine needing to worry about this thing for many years.
Kyle Davis –
Amazon asked me to rate the “security features” of this product, when they frankly don’t exist. It’s just an extra place to mount a light, there’s no way to keep a stranger from yoinking it off your bike, but that’s no big deal.I purchased this light mount so I could attach my 50 lumen Cygolite Hotshot to my rear rack, where my panniers wouldn’t block it to oncoming traffic. I’ve been pleased with its performance, but I had to modify it in order to fit it on my loaded touring bike–if the little dongle faced upwards, my tent would rest on it and stress the plastic, but if it faced downwards, it got in the way of my rear fender. I cut away most of the dongle and can still get the light on and off, so no issues there.My only complaint is the price–it’s a trivial piece of plastic, yet I paid $6.95 and was required to purchase something else in order to even ship it, if I remember right. (It’s officially an “add-on item.”) This is just a tiny piece of durable plastic that I thought would cost closer to $3, but whatever. It fills a useful niche that I would’ve been hard pressed to jerry-rig on my own.
Timazon –
Mount fits perfectly on my Topeak Explorer rack, used the top hole on the rack and the mount has a round plastic tab that fits into the lower hole, keeping it aligned vertically.Insert the hex bolt into the mount face and use the nylon lock washer in the rear.I added a thin 5mm washer before the lock nut, and an 8mm box wrench to tighten.A second bolt and nut are included, but not needed for my rack.Once snugged-up the mount isnβt going anywhere.The flexible locking tab that hangs down from the mount is a bit stiffer than the one that came with my HotShot 50, but it works, takes a little more effort to bend the locking tab back to release the light. Thereβs less of an audible click when inserting the light, but it is secure once installed.
Glenn –
This mount works as advertised for mounting Cygolite taillights on a standard rear rack bracket. It is sturdy and holds firmly once in place, but it’s a pain to install. Capturing metal hex nuts in the plastic sockets is necessary for installation, and it’s a very tricky, imprecise fit that is frustrating to deal with. So be ready!
Gil –
I have a bag on my bike rack and had previously put my rear-facing red flashing Cygolight on a bag loop but it did not point straight back. I took off the rear reflector on the rack and mounted this bracket in its place. I had to take the rear wheel off to apply a wrench to the locking nut as the mounting hole was too close to the cross bar of the rack and I couldn’t fit a socket over it. The bolt head on the other side is sunk in the bracket so I could only work the nut side.
Paul –
Went right on the back of a Topeak rack. Perfect install. Easy to use.
Humble Handyman –
I have managed to install batter powered taillight to the rear of the cheap Ventura cart rack I installed on my old Electra cruiser.The holes on the rack and adapter overlapped, Iβd say for 80% (?). So I used the central screw and replaced 2 other supplied screws, all with hex heads, with my own ones, smaller and with Phillips heads.The job is done. So, I recommend it.