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Built for strength without adding bulk, the MonoRail handles up to 60 lbs per bike while weighing just 37 lbs itself. That’s plenty for most e-bikes, fat-tire bikes, or anything with extra heft. The platform design keeps bikes steady mile after mile, and the steel-and-aluminum build with a black powder coat finish stands up to weather and road grime without rusting out.
The ratcheting arms grab each bike securely by the front wheel, never the frame. That means your carbon builds or custom paint stay untouched. Large front-wheel cradles and pivoting rear-wheel trays hold wheel sizes from 20" to 29" and tires up to 5" wide. Even bikes with different wheelbases fit easily thanks to pivoting rear cradles that adjust automatically to each setup.
The front-mounted release lever makes it simple to tilt the rack down — even when fully loaded — so you can get to your cargo area without unloading the bikes. When you’re done riding, pull the same lever to fold the rack upright for compact storage. The click you hear confirms it’s locked in place, so you can navigate tight parking spots without removing the rack.
A threaded, anti-rattle hitch pin tightens the MonoRail securely in the 1-1/4" Class II receiver to eliminate wobble and noise. No clanking or shifting, just a solid connection that keeps the rack and bikes steady over bumps and turns. The 12" clearance from the hitch pin hole to the nearest part of the rack gives dependable bumper space.
Both your bikes and the rack itself stay protected with keyed-alike locks. The integrated cable lock threads around both frames and snaps into place, while the hitch lock secures the rack to the receiver using the same key. It’s a clean, no-fuss setup that keeps your gear safe at every stop.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Great platform rack. Very reasonably priced and compared to the competition I would say It is the best bang for you buck!
This is a great bike rack. I was rear ended a few weeks ago, which damaged the bike rack, but I liked it so much I bought the exact same one.
Stable, works great. Excellent service from etrailer who shipped package to Canada. Thank you!
I’m still really happy with this purchase. One year later and having done a lot of day trips with my bike on this rack, I honestly have no complaints and wouldn’t change a thing.
Great rack. Straightforward assembly, seems to have really good quality parts. Tried it out with two mountain bikes and really like the solidity of the parts.
Easy to assemble Exactly what i expected
I've had this bike rake for about a year. Built very sturdy. Fits my fat bike, trail bike, and road bike. Only downside is that the locks are a bit cheap. Plastic bodies that could probably be broken off with a hammer.
This bike rack is excellent! Saved me several hundred dollars compared to the Thule one I was going to buy at a local bike store, and it can carry about 100 pounds more, which I need with my wife's new e-bike. So glad a friend told me about etrailer.com, I will use them again!
Received the Rockymounts in just few days from ordering. Rack is just as described (thanks for your excellent reviews and videos). An easy installation on Acura RDX 2019. Completed our first trip (100miles) with two bikes mounted on with no problems (I was a bit concerned about the weight on the 1-1/4 hitch). The feature we love the most is the ability to tilt the rack with the 2 bikes mounted, open the tailgate and get a clear/full access to car. On first impression this is a great rack. However we'll have to wait and see how it will preform in the long run. I was very happy with etrailer. Great communication and they immediately matched a lower price from other retailers.
This is my third bike rack and definitely the best. The extra front tire support is a nice feature as well as the pull handle for raising it up. etrailer worked with me about a messed up shipping for the 1st order and let me switch hitch sizes when UPS failed to deliver to me and returned it to etrailer.
The hitch insert portion of the rack bent slightly after long road trip with two enikes each 45lbs each.. I contacted the supplier and they mentioned there was a batch of bad metal and they sent me a replacement piece. I would probably buy a different rack next time.
Relatively easy to assemble and install. Rack is solidly attached to hitch with little movement. Tools for installation are provided. Bikes do not touch each other. Bikes are easy to load on rack. Locks provided.
Fits a wide range of tires (including fat bikes) and modern mountain bikes, size small through extra large with ease. I've tightened down the rack a few times with the supplied tool, and that is the only maintenance required so far. Very happy.
I am extremely pleased with etrailer. I have previously purchased 2 1.25" trailer hitches, a very smooth process also, but this is the first bike rack. I received it on the promised date. I was pleasantly surprised at how well it was packed and organized. Even the screws and bolts already had on them the proper flat washer alone or along with the split washer as per the instructions. The instructions were clear and assembly easy. It is very solid and well constructed. The rack folded up looks "sleek" on the back of my Prius. Drove 12 miles with a road bike and hybrid on the rack day after assembling and had no problems It takes less than a minute to put the 2 bikes on the rack.
Here is a different prospective. I have had for about 10 years a Thule T2 Classic rack that I love and use regularly. It is very similar to to the RockyMounts Monorail. As I needed a 2nd rack why did I purchase the RockyMounts Monorail? It is 11 pounds lighter and $xx less expensive. It is less bulky but still very strong and carries the bikes just as well as the Thule. Surprising benefits are the blue release lever is at waist level and easily accessed compared to the release lever on the Thule. Also to lower the bike loaded rack to open the hatch door you just pull on the same lever. On the Thule you need to remove a separate hitch pin that is below the bikes and not easily reached. The lighter weight is much easier for my wife to raise and lower the rack. Overall a great experience.
Easy to assemble and use. Bike is stable. It is light enough that I can easily put it on and off the car as needed and love that it folds up and tilts down. I have only been using it a short time. My only concern is how the plastic wheel cups will hold up over time. They are thick plastic and not a brittle type of plastic, yet it does seem to be the least tough part of the system - orherwise I’d have rated it 5 star
After a year of using this rack I am still quite happy with it. It is holding up well, is easy to use and holds the bikes securely. For such reasonable price this is a solid rack that I would highly recommend.
Ken O.
5/21/2020
Still very happy with this bike rack. It has held up well with no problems and I use it regularly. The tilt works great and is especially handy when I forget and put the bike on before closing the hatch Mazda CX-5.
Received a Rockymounts Monorail 2 in just a few days from ordering. My first impression after unboxing to assembly is this rack is well made and stout. Assembly was quick and had it on our older Outback in less than a half hour. The bolt mount to the 1&1/4" hitch is good and tight , no movement at all. Mounted my mountain bike in less than a minute, then my wifes all around and no interference although there is adjustment in the trays if needed. Drove around the block and am very impressed with the lack of movement. The release handle is cleverly placed and lowering the rack fully loaded is a snap and plenty of room to open the back door of the car.
This is one well made good looking rack, highly recommended! Very happy with Etrailer
Absolutely love it. Put it on the car the first day and took it out with the bike. Was a little iffy about it at first but after a few minutes my fears were eased. This rack is rock solid and I’m so glad I purchased it.
Sean
1/29/2024
Great product! Solid build. Was unsure at first but after installing and carrying my bikes around the first time I have zero anxiety about the security of the rack. Would definitely recommend to anyone who is looking for a solid and secure transportation for their bikes. It also fits my road ebike with no issues.
I love this rack. It's simple, light and fits all sizes of bikes, even those with fat tires. And the price was great.
The staff at etrailer has always been helpful. This is the best site I've seen for rack/hitch/trailer stuff due to the ease of use, the information available, the staff and the prices.
Works like a charm. Able to get into hatchback without pulling rack down, but when it’s more convenient to get rack out of the way, it is very, very simple and easy to do with one hand.
Richelle
7/10/2022
This bike racks continue to perform. Additionally, when I prefer it off the car, it is easy and quickly removed and reinstalled. Handles the weight of our 2 e-bikes. Would recommend.
This is the best bike rack I've ever owned. It's very simple and quick to mount bikes and they remain very secure and solid on bumpy roads and crossing RR tracks. No extra bungie cords or ropes required. We own1 ebike and there is no problem with the rack handling the extra weight. If you have an SUV you can still have access to open your back hatch door even with the bikes loaded because of the tilt feature. Your bikes can be locked to the rack as well as the rack locked to your vehicle with the locks and keys provided. I would recommend this rack to any one looking for something simple and secure. It's very well constructed.
Have had a lot of use with this rack.
Easy to load in car hitch. Couldn’t be simpler for securing the bikes.
The raise and lower ability is helpful to open trunk easily. (Has previous rear trunk mounted rack that was a pain and near dangerous to open the trunk with the bikes on the rack.). I drive a Honda Accord 4 door.
Recommend this rack highly. Really like it. Well made and worth it.
Tom M.
3/1/2021
Sturdy, reliable, easy to use, does its job well. I was happy to purchase it a year ago and I’m still happy I purchased it. I recommend this rack without hesitation. It’s been a good investment and I’d get it again if I had a do over.
Just received, was very easy to put together, all the tools and hardware came with the hitch. Seems like a quality hitch. The “T” handle tilt lever feels very solid, seems like thought of everything, came with two locks, one for the hitch pin, and the other for a cable to secure the bikes with its own spot to attach the cable. Even came with strap extensions in case your bike has extreme fat tires. So far very pleased with this purchase.
Fred
4/1/2022
I had bought the one inch the fit my hitch, worked gteat for a while, but we have a cabin in Lake Tahoe, about 200 mile drive. We have two EBikes that we have bean towing, they are within the rated advertised limit, when we got home, the rack had bent backwards, and the bike rack was close to ground.
Brooke M.
4/22/2022
Just received today. set it up was easy. Bike rack is sturdy and looks good. It’s a lot cheaper with similar quality compare to other brands. Pretty happy so far.
Ease of operation & loading bikes. Can fold down and lower tailgate on truck, which is great convenience, bolt secures with minimal wiggle & sway.
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Susan
3/19/2025
Its been great Ive travel cross country over 15,000 miles without a hitch ..pun pun ! Stable and secure