bing tracking image
  1. Hitch Bike Racks
  2. Kuat
  3. 4 Bikes
  4. Fits 2 Inch Hitch
  5. Platform Rack
  6. Electric Bikes
  7. Fat Tire Bikes
  8. Heavy Bikes
Kuat Piston Pro Bike Rack for 4 Bikes - 2" Hitches - Wheel Mount
Kuat

Kuat Piston Pro Bike Rack for 4 Bikes - 2" Hitches - Wheel Mount

Part Number: KU58ZR
In Stock
$2,387.00
Hitch Bike Racks
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

This platform rack has arms that deploy with the tap of a lever, making loading and unloading bikes almost effortless. Arms hold your bikes securely by the wheels. Bikes can be loaded onto the wheel trays front to back to prevent handlebar contact. 1-800-940-8924 to order Kuat hitch bike racks part number KU58ZR or order online at etrailer.com. Free expert support on all Kuat products. Great prices and Fastest Shipping for Kuat Piston Pro Bike Rack for 4 Bikes - 2" Hitches - Wheel Mount. Hitch Bike Racks reviews from real customers.
  • All Info
  • Reviews (24)
  • Q & A (0)
  • Photos

Kuat Hitch Bike Racks - KU58ZR

Highlights

  • Carry Up to 4 Bikes Securely: Holds 40 lbs per bike with wheel-only contact to protect frames.
  • Load Bikes Fast: Tap-release arms with hydro-pneumatic pistons lift and lock automatically.
  • Fit Every Tire Type: Grooved trays handle 18"–29" wheels and up to 5" wide fat tires.
  • Access Cargo Anytime: Tilts with bikes loaded so you can reach gear without unloading.
  • Stays Quiet on the Road: Flatlock cam tightens in hitch to reduce movement and noise.
  • Lock Everything Down: Includes keyed-alike cable and hitch locks for rack and bikes.

Features to know about

Effortless Loading with Hydro-Pneumatic Arms

Getting bikes on and off the rack shouldn’t feel like a workout. The Piston Pro’s hydro-pneumatic arms deploy with a quick tap of a lever, so they rise and hold position automatically while you set your bikes in place. Once loaded, the ratcheting arms clamp securely on the wheels—never the frame—protecting paint and carbon finishes. The wheel bridges adjust without tools for 18"–29" tires, making it just as easy to secure kids’ bikes as full-size mountain or e-bikes.

Kuat Piston Pro bike rack arm with hydro-pneumatic strut showing easy lever deployment system for loading bikes

Kuat Piston Pro bike rack showing deployed hydro-pneumatic arms securing bikes by their wheels

Kuat Piston Pro U-shaped arm with labeled tire size bridge settings from 20 to 29 inches securing bike wheels

Stable Support for Every Ride: 40 lb Capacity per Bike

Each position on the rack supports up to 40 lbs, giving plenty of strength for electric, fat-tire, or heavy builds. The platform design carries up to four bikes, and the front two positions can be removed if you only need space for two. With wheel trays that let bikes roll front to back, you can fine-tune placement to keep handlebars from clashing. Grooved tracks fit anything from narrow 18c road tires to 5" rubber, so every setup rides solid and secure.

Kuat Piston Pro 4-bike rack showing removable front section and ratcheting arms for adjustable bike capacity

Kuat Piston Pro grooved wheel trays designed to hold road and fat-tire bikes without frame contact

Kuat Piston Pro rear wheel cradle holding back tire securely on wheel tray platform

Quick Access When You Need It: Tilts and Folds with Ease

Reaching your cargo area is simple. The Piston Pro tilts down even with bikes loaded, so a quick pull of the spring-loaded pedal gives you space to grab gear or groceries. When the ride is over, fold the rack up for a smaller footprint. The design keeps it easy to store, park, or keep mounted without getting in the way.

Kuat Piston Pro 4-bike rack tilted down allowing rear cargo access with bikes still mounted

Kuat Piston Pro bike rack folded up against vehicle demonstrating compact storage design

Locked Down and Quiet on the Road

A flatlock cam system tightens the rack inside the hitch to cut down on movement and noise. The included security tool fits only the Piston Pro, adding an extra layer of protection. A 12-mm braided steel cable lock secures your bikes to the rack, and a stainless steel hitch lock keeps the rack itself safe. Every piece locks together so you can step away knowing everything will still be there when you return.

Kuat Piston Pro installation showing flatlock cam system securing rack in 2-inch hitch receiver

Kuat Piston Pro proprietary security tool with hollow-point hex design for securing bike rack

Kuat Piston Pro integrated cable lock securing bikes to rack using braided steel cable

Kuat Piston Pro stainless steel hitch lock securing bike rack to vehicle hitch receiver

Optional Ramp for Heavy E-Bikes

For heavier bikes that are tough to lift, the telescoping aluminum ramp (sold separately) lets you roll them right onto the trays. It slides into place quickly and reaches the ground, so you don’t have to lift at all. It’s a simple add-on that takes the strain out of loading, especially when dealing with 60- to 75-lb e-bikes.

Kuat Piston Pro aluminum telescoping loading ramp accessory for rolling heavy e-bikes onto rack

Kuat Piston Pro hook-and-loop strap kit accessory enabling transport of bikes with fenders

Specs

Application

  • Hitch receiver size: 2" x 2" trailer hitch receivers

Weight and Capacity

  • Carrying capacity: 4 bicycles
  • Weight capacity: 40 lbs per bike

Wheel and Tire Compatibility

  • Wheel size: 18" - 29"
  • Maximum tire width: 5"
  • Maximum bike wheelbase: 53"

Dimensions

  • Distance from center of hitch pin hole to closest part of rack when folded down: 10-1/8"
  • Distance from center of hitch pin hole to closest part of rack when folded up: 6-3/8"

Weight

  • Carrier weight: 108 lbs

Warranty

  • Limited lifetime warranty

PP22B Kuat Piston Pro Bike Rack for 2 Bikes - 2" Hitches - Wheel Mount

PPA2B 2-Bike Add-On for Kuat Piston Pro Bike Rack for 2" Hitches - Wheel Mount

Installation Details KU58ZR Installation instructions



Ratings & Reviews

4.8

24 reviews
Review sort icon
This platform rack has arms that deploy with the tap of a lever, making loading and unloading bikes almost effortless. Arms hold your bikes securely by the wheels. Bikes can be loaded onto the wheel trays front to back to prevent handlebar contact.

by:



by:



by:



by:



by:



by:

No issues, thank you!



by:



by:



by:

Easy to assemble, sturdy, secure, compa ct.



by:



by:

Very good!



by:

etrailer does an excellent job reviewing and showcasing its products. We spent many hours of research on the site before deciding on the Kuat. Assembly was fairly simple and quick. The features of the rack make it easy to use. Stable ride for our bikes down a wide variety of conditions (highway, dirt road, wash boards). Expensive, but the ease of use and quality make it worthwhile.



by:

I researched tray racks for mountain bikes and knew that Kuat's Piston Pro was the best rack for my needs. I love etrailer for the how to install videos, support and pricing. If etrailer sells an item I'm interested in I purchase from them. I do this because of how hard they work for their customers. This rack is exceptional. Build quality is first class. The assembly was simple, the locking cable and hitch lock are very sturdy. My 29" wheel full suspension Specialized fits perfectly. My son's smaller Scott Mountain Bike also fits perfectly. We are getting Fat Tire Bikes and the trays support 5" tire widths. Adjustments for wheel size is simple, loading a bike is even easier. The bikes are solidly secured in place. 10 out of 10.



by:

It was a surprise treat to have it setup and installed under an hour! Works very efficiently as advertised def worth look into it.



by:

Easiest rack ever to use, holds my heavy ebike stable, sliding parts still working smooth after a year of use and being mounted to my car 90 percent of the time. Highly recommend.



by:

Great bike rack! It came to my house safely and was easy to install.



by:

Very substantial rack. Rides solid on our vehicle. As usual etrailer was extremely helpful and shipping was fast. Can’t say enough about etrailer customer service.



by:

The piston pro bike rack is easy and fast. I can have my bike off the rack and on the trail in under a minute. Loading it back up is just as simple. It’s definitely a pricier option, but absolutely worth it. This makes me so happy every time I use it!



by:

Great service and great product. etrailer really helped me decide (with their videos) and stayed with me through the buying process. I was kept in the loop through the entire order/shipping process. The easiest installation of a product I have ever done. The video and the instructions were good - but the engineers who thought about how the customer will install this on their vehicle were the real stars. Could not be happier.



by:

Great rack. Built well. Finish is superb. Arrived quickly and assembly was a snap.



by:

etrailer does not disappoint , great personal and company. Excellent customer service. Photos of KÜAT Piston pro on a 2026 Honda Trailsport elite



by:



by:



by:


24
24

See what our Experts say about this Kuat Hitch Bike Racks

  • Can Kuat Piston Pro Bike Rack be Used at Rear of Camper
    Hey Larry, I checked with Kuat and the Kuat Piston Pro Bike Rack for 4 Bikes # KU58ZR that you referenced is rated for use at the rear of a camper so it will work great in that application. What kind of bikes do you have?
    view full answer...
  • Does The Kuat NV 2.0 Bike Rack for 4 Bikes # NV22G-NA22G Interfere With Bike Fenders
    Hi Rebekka, The Kuat NV 2.0 Bike Rack for 4 Bikes # NV22G-NA22G has a ratcheting arm that will interfere with front fenders so it unfortunately wouldn't be the best option option for hauling your bikes. If you wanted to stick with the Kuat brand then you'll need the Kuat Piston Pro Bike Rack for 4 Bikes # KU58ZR instead, which does mount via the wheels but the arms don't have to rest against the forks and interfere with the fenders. Inno offers a similar style rack # INH142 that's quite...
    view full answer...
  • 4 Bike Rack for 2016 Toyota Highlander Carrying Carbon Bikes and 18 inch Wheel Bike
    Hey Steve, so we have ONE bike rack that covers everything you need and it happens to be the nicest (most expensive) bike rack we carry...but like I said it's only option that I can confidently recommend that covers all of the things you need. The bike rack you need is the Kuat Piston Pro 4 bike rack part # KU58ZR. This is a 4 bike rack that only touches the bikes by the tires which protects the carbon frame, it's only option that can carry an 18 inch diameter wheel like you need, and...
    view full answer...
  • Will a Kuat 4 Bike Rack Work With a 2024 Mazda CX-30
    It looks like the Kuat 4 Bike Racks : # KU77FR, # NV22B-NA22B, # KU58ZR, & # KU45VR you're referring to, all require a 2" hitch and unfortunately only a class I 1 1/4" hitch is offered for your Mazda. If you're needing a hitch, the Curt Trailer Hitch Receiver # C49CR will work great, but you're not going to be able to use your 4 bike rack. The only way any of those bike racks would physically fit is if you used a hitch expander # HTAD, but using an adapter would effectively cut your...
    view full answer...
  • Is Weight Capacity of Kuat Piston Pro 4-Bike Rack Per Bike or Total
    The capacity is how much each individual bike can weigh and not the total amount; so each of your four bikes must weigh 40 lbs or less when using the Kuat Piston Pro Bike Rack for 4 Bikes # KU58ZR.
    view full answer...
  • Can Kuat Piston Pro Bike Rack for 3 Bikes Be Used with Single Bike Add-On for a 4-Bike Rack
    The Kuat Piston Pro Bike Rack for 3 Bikes # KU38ZR cannot be used with another 1-Bike add-on so you'll either need to go with the 4-Bike version, part # KU58ZR, right off the bat, or you'll need to get the 2-Bike Add-On # KU26ZR to use when you need to carry 4 bikes. We've seen modular bike racks in the past that let you add a single tray at a time and while the initial thought is a good idea, those racks would get way too heavy way too fast. So this system of either one tray or two trays...
    view full answer...
  • Loading Ramp to Fit Kuat Piston Pro 4-Bike Rack
    To add a ramp to the Kuat Piston Pro Bike Rack for 4 Bikes # KU58ZR you just need the Loading Ramp # KU63VR. This easily slides over the edges of the trays and then can be removed fairly quickly for a simple add on.
    view full answer...


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee John S
Video Edited:
John S
Employee Matthew S
Written by:
Matthew S
Employee Daron K
Edited by:
Daron K
Employee Aidan B
Test Fit:
Aidan B
Employee Evangeline M
Test Fit:
Evangeline M
Employee Matthew B
Test Fit:
Matthew B
Employee Charles A
Video by:
Charles A
Employee Ethan H
Video by:
Ethan H
Employee Samuel H
Video by:
Samuel H
Employee Cooper S
Video by:
Cooper S

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.