15mm Adaptor 110mm Axle Length

Update: the seller kindly reached out to me to let me know that I had actually ordered the wrong size adapter as I had accidentally ordered the 15x100mm version. I ordered the correct version and it works great! If only I could return the wrong ones I bought!! I love my rock bros bike rack. But I just got a new bike with a 15x110mm QR axle and so I had to buy these adapters. Unfortunately they’re just too short and don’t make contact with the fork in either side. Not sure how these are supposed to work being the way they are. Seems like they just need to add a bit more width to them and then they’d be perfect. The way they are now, my axel won’t lock down and the bike moves all over the place while driving! Definitely not good!!

Works great as described for my thru axle bike. Make sure to take measurements and or just look them up online before ordering.

They fit on my fox 36 perfectly great choice for boost bikes I haven’t had any problems

Inserts work for my bikes, but I think these cheap plastic pieces should be even cheaper or should have been included with the rack to begin with. No extra slack or wiggle room and fit nicely. 15mm x 100mm for my Mountain bike (Ibis Mojo with Fox fork). 12mm x 100mm for my road/gravel bike (Moots Routt with enve fork).

High-quality IM part performed as advertised and made the Rock Bros. suction cup roof rack useful with my mountain bike.

Not only is the basic rack a piece of junk, the bushings are too big allowing bike movement.

Fits perfectly.

Ordered the 15x110 adapter as shown for my 15x110 fork but the fork doesn’t rest on the adapter and there’s nearly a 1” slop of play. Can’t recommend. About to return the whole RockBros setup. So frustrating as I needed this for a trip. *Update* +1 Star Coordinated with customer service and got the correct fitting spacer. It appears that a 15x100 spacer was placed into a 15x110 package, which was my suspicion but was initially met with disbelief from customer service staff and was told that my 2023 Fox 36 is not a compatible fork and that it was impossible their warehouse could have messed this up. They eventually apologized and again did send me assurance of fixing this in the future as well as the proper spacer. On the actual fitting product, it performs as expected EXCEPT that is doesn't quite fit well enough to where one can comfortably rest your bike/fork on the spacers - as you would on your wheelset - so you're left with delicately balancing/holding the bike/fork in place on the spacers with one hand while the other hand finds, grabs, and installs the thru-axle. Tightens fine and I don't believe the bike is going anywhere but I really would love an update to the design or improved tolerances so that I can set/rest my bike onto the spacers directly without having to fiddle with a balancing act.

Be aware, this is not a full set of different sized spacers as the advert would indicate, especially since there were no options to select the size I actually needed. The size is also not mentioned in the product description and it mentions all sizes so it is an easy assumption that it includes all sizes, especially considering the price, which is not the case. For 170+ AED / $40 for 2 small pieces of plastic bushes it is ridiculous. I really don't know why they should need to be purchased separately anyway, ROCKBROS should send a full set of adapters with the suction cup mounts.