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  8. Elliptical Bars
Inno Fork Lock III Roof Bike Rack - Fork Mount - Clamp On - Aluminum

Inno Fork Lock III Roof Bike Rack - Fork Mount - Clamp On - Aluminum

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Roof Bike Racks
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INA391 - Disc Brake Compatible Inno Roof Bike Racks
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Locking, fork-mount rack lets you carry 1 bike on your roof. 9-mm Quick-release skewer secures bike fork to rack. Ratcheting rear-wheel strap adjusts to accommodate different bike lengths. Tool-free installation on most crossbars. Lowest Prices for the best roof bike racks from Inno. Inno Fork Lock III Roof Bike Rack - Fork Mount - Clamp On - Aluminum part number INA391 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (14)
  • Q & A (11)
  • Videos (58)
  • Photos
  • Why etrailer?

Inno Roof Bike Racks

  • Fork Mount
  • Inno
  • Aero Bars
  • Factory Bars
  • Round Bars
  • Square Bars
  • Elliptical Bars
  • 9mm Fork
  • Bike and Rack Lock
  • Disc Brake Compatible
  • Clamp On - Standard
  • Silver
  • Aluminum

Locking, fork-mount rack lets you carry 1 bike on your roof. 9-mm Quick-release skewer secures bike fork to rack. Ratcheting rear-wheel strap adjusts to accommodate different bike lengths. Tool-free installation on most crossbars.


  • Fork-mount carrier lets you transport 1 bike on your roof rack crossbars
    • Requires that your bike have a 9-mm quick-release front-wheel skewer
    • Works with bikes that have disc brakes
  • Adjustable, 9-mm quick-release skewer secures your bike's front fork to the rack
  • Ratcheting strap secures bike's rear wheel to the tray
    • Slides along wheel tray to accommodate bikes of different lengths
  • Locking lid secures bike to carrier and carrier to crossbars
    • Tighten and close skewer, shut lid, and turn the key
    • Skewer can't be removed and front mounting bracket can't be loosened when lid is locked
  • Simple, clamp-on installation to most crossbars - no tools required
  • Lightweight, rustproof aluminum construction
  • White powder coat finish


  • Application: round, square, aero, elliptical, and most factory crossbars
    • Maximum crossbar dimensions: 3-1/2" wide x 1-1/8" tall
    • Long bolt kit (INISF725 - sold separately) lets you mount rack to crossbars up to 2" tall
    • Crossbar spread: 20" - 32"
  • Carrying capacity: 1 bicycle
  • Weight capacity: 50 lbs
  • Wheel diameter: 20" - 29"
  • Maximum tire width: 2-11/16"
  • Fork block width: 3-7/8"
  • Overall dimensions: 54" long x 6-1/2" wide x 6-1/8" tall
  • Carrier weight: 9.5 lbs
  • Limited lifetime warranty

Inno Fork Lock III on roof

The Inno Fork Lock III fork-mount carrier lets you transport 1 bike on the roof of your vehicle. A 9-mm quick-release skewer secures your bike's front fork, and a ratcheting strap holds the rear tire. The carrier clamps onto most crossbars with no tools required. A locking cover secures your bike to the carrier and the carrier to your crossbars.

Fork Block with 9-mm Skewer

Inno Fork Lock III with skewer openInno Fork Lock III with skewer closed

The fork block includes a 9-mm quick-release skewer with an oversize handle. To mount your bike, simply open the handle, lower your bike fork into the skewer, tighten the adjuster, and close the handle. The adjuster will spin freely once your skewer is secure to prevent over-tightening.

Adjustable Rear-Wheel Strap

Inno Fork Lock III rear wheel strap

A v-shaped wheel tray holds tires up to 2-11/16" wide. The rear wheel is secured by a strap that slides along the tray to accommodate bikes of different lengths. The strap ratchets down on both sides of the rear tire to ensure a tight fit.

Easy Installation

Inno Fork Lock III front cover diagram open

The rack installs easily with included mounting hardware - no tools required. Just open the front cover and lift the front lever so you can remove the square nut from the mounting bracket.

Inno Fork Lock III front lock closed

Place the rack on your crossbar, slide the bolt into the open end of the bracket, and secure it in place with the square nut. Use the 2 hand knobs and the square nut to adjust the bracket to the size of the crossbar, then close the lever to tighten.

Inno Fork Lock III rear bracket

The rear mounting bracket secures to your crossbar with 2 bolts and 2 knobs. Simply place the bracket under the crossbar, slide the bolt into the bracket, and tighten with a hand knob.

Inno Fork Lock III spacer diagram

Depending on the thickness of the crossbar, you may need to use the included spacer or rubber sheets to mount the rear hardware. Additionally, you will need the Inno long bolt kit (INISF725) to mount the rack on crossbars 1-1/8" - 2" thick.

Complete Security

Inno Fork Lock III locking cover openInno Fork Lock III locking cover closed

The Inno Fork Lock III has a locking cover that lets you secure your bike to the rack and your rack to the crossbars. The quick-release skewer handle is under the cover when closed and it cannot be opened unless the cover is unlocked. The front mounting hardware is also under the cover when the cover is locked.

INA391 Inno Fork Lock III Roof Bike Carrier - Fork Mount - 1 Bike - Aluminum

Item # INA391

Installation Details INA391 Installation instructions

Video of Inno Fork Lock III Roof Bike Rack - Fork Mount - Clamp On - Aluminum

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Inno Roof Bike Racks Review - 2017 Ford Taurus

Speaker 1: Today on our 2017 Ford Taurus, we're going to be test fitting the INNO Fork Lock III roof mounted bike rack, part number INA391. We have our bike installed already. Let's take a closer look and show off some of the features.How the bike is attached to the rack, we're not going to have any frame contact at all. Instead, we're going to have two points of contact, which is going to be the rear strap here, and this is adjustable the length of the bike rack to accommodate for bikes of different sizes. Then up at the front here, we're going to have the skewer mount that's going to grip your bike by the forks.This top portion is lockable, so once this is locked down, you can't remove your bike, therefore your bike is secured to the rack, and you can't remove your bike rack from the roof rack, so it's secure that way as well. With everything as installed as it is, we're not going to have an issue of clearance between the bike rack and the trunk.

As you see, there's plenty of space in between.Let's go ahead and take off the bike. We push this top portion of the tab here. You see these little bumps on it, push that up. That will remove the strap. We'll lift open this cover here.

To release our skewer, we'll just open up the lever. How this actually attaches to the roof rack, at the rear we'll have this bracket here with the two turn knobs to tighten around the rear, and up at the front we'll have this clamp that wraps around which is controlled by this switch up at the top, and of course we have our lock as well.There you have it for the INNO Fork Lock III roof mounted bike rack on our 2017 Ford Taurus.Here it is on our test course. We'll start by going through the slalom. This is going to show us the side to side action, which simulates turning corners or evasive maneuvers. Next, we're at the alternating speed bumps, which we'll see the twisting action.

This will simulate hitting a pothole, or driving over uneven pavement. Finally, we have the full speed bumps, where we'll see the up and down action, which is just like driving out of a parking lot or driveway.

Customer Reviews

Inno Fork Lock III Roof Bike Rack - Fork Mount - Clamp On - Aluminum - INA391

Average Customer Rating:  4.7 out of 5 stars   (14 Customer Reviews)

Locking, fork-mount rack lets you carry 1 bike on your roof. 9-mm Quick-release skewer secures bike fork to rack. Ratcheting rear-wheel strap adjusts to accommodate different bike lengths. Tool-free installation on most crossbars.

- INA391

This bike rack is a cheaper option to many roof top bike racks that can exceed $200. The system is very rigged and I have loved the system so far. I live around very rough roads, and I have not had the skewer loosen up at all. Even if it did, I feel much better knowing that there is a locking plat over the skewer. With the plate cover being plastic, I still run a bike lock through my frame and roof bar just to add an extra line of defense when camping/leaving my vehicle for extended periods of time. For driving security, the cover does exactly what is intended to do. Overall, a fantastic system and I enjoyed the first class customer service I received when ordering the bike rack. 500954

- INA391

This rack is great. Seems strong and fits my Gary Fisher Mullet easily. Easy to set up. Best thing is Etrailers shipping and tracking. Literally shipped the night I ordered it. Etrailer is great and I would have no reservations about ordering from them. 605442

- INA391

Great product, easy and quick to setup, very stable. Delivery was on time as promised. I have using this Inno Fork Lock system for about a year now and like it a lot. Many thanks for etrailer.com team to create and manage website! Your videos really helped me to choose the right product. Keep up a good work and thanks, 401217

After two years of use I can confirm that that was the right purchase for us. No complains so far. Easy to put it on and take it off. Works for both mountain and road bikes. Steady and tight on the roof rack of my Ford Fusion. I would recommend this product to my friends. Thanks to Etrailer staff for keep doing great job!
Igor G - 07/03/2018


- INA391

Good product with one exception> Works great on road bike forks but does not support moutian bike forks. You can buy and us an adapter but then you lose the ridgidness and the ability to lock the bike through the fork mount. 460051

- INA391

Had to really search for a roof-mounted fork rack for my Envoy with factory roof racks. Thule & Yakima do not make anything compatible withoutbuying their over-priced roof racks. I heard about Inno, and etrailer had the best price. I was still nervous when I received the rack, but install was straight forward and took about 15 mins. I centered the Inno rack on the vehicle because the factory racks are curved vertically. Fast communication & shipping from etrailer! 757119

- INA391

I am very satisfied with my product that I ordered from you guys ! 756424

- INA391

Works well and holds my bike great! 668197

- INA391

Works as advertised. No problems or complaints. No wind noise at all. Makes transporting bikes much easier! 654300

- INA391

This matches the previously purchased item. Great rack! 617405

- INA391

Easy to install and works great with my Gary Fisher mountain bike. Plenty of clearance for the brake caliper! Used it in combination with my Rola roof rack on my 2013 Hyundai Elantra. Paula was a huge help with both my orders and making sure I got the right product for my vehicle! Excellent customer service! 522999

- INA391

Product was very easy to install , very sturdy and well thought out rack. Great service form etrailer keep it up, would definitely recomment to my friends. Happy camper here. Cheers! 508448

- INA391

Ordered this bike rack for my wife's van. They said it would take 3 days for delivery got it in two days. Set up was easy. It took me longer to get the rack out of the box than it did to get it installed on the roof. Had to make small adjustment to get the bike to sit just right but it was easy. I have had all kinds of roof mounted bike racks in the past and I have to say this is with out question the easiest install and best looking rack I have used. It also has the best locking set up I have seen. No worries of someone staling it off your roof. 417070

- INA391

Installed in about 5 minutes on my 2015 Honda Pilot factory crossbars and worked well on first use with a mountain bike. No noticeable wind noise when no bike is loaded. 266542

- INA391

Great rooftop fork mount bike rack that seems like it will attach to just about any bar system or factory rack. Simple enough to install, seems durable and secure, with one minor drawback. The strap for the rear wheel is a rubber "pull to tighten" instead of a ski boot style clamp. I imagine this as difficult after those winter rides with frozen rubber and fingers... But working well in the summer. 209212


Ask the Experts about this Inno Roof Bike Racks

  • Recommended Adapter for Fork Mounted Bike Carrier to Hold 15mm Thru-Axle Forks
    I was able to find your order of the Inno Fork Lock III Roof Bike Rack - Fork Mount - Clamp On - Aluminum # INA391. I reached out to my contact at Inno and he said they don't make an adapter but other manufacturers do that are compatible. I recommend the Yakima Universal Fork Adapter for 15-mm, Thru Axle Forks # Y02099, the Thule # TH53015, or the Swagman # S64706. All of these will be compatible, so it comes down to brand preference.
    view full answer...
  • Recommended Roof-Mount Fork-Style Bike Carrier for Factory Bars on 2013 Volvo S60
    We offer quite a number of fork-mount bike carriers that will fit on vehicles' factory-installed roof rack crossbars like those on your 2013 Volvo S60. You can see all by clicking on the link provided. You can also click on the filters on the page to narrow the selection by specific rack features, such as locks, compatibility with disc brakes or for your particular bike fork type. For example, a cost-effective option with locks that fits a 9mm fork and works with disc brakes is the...
    view full answer...
  • Crossbar System and Bike Rack for RetraxONE XR Hard Tonneau Cover on 2019 Ford F-150
    For the crossbar system that works perfectly with the RetraxONE XR Hard Tonneau Cover # RTT-60373 on your 2019 Ford F-150 I recommend the Yakima CoreBar System # Y00422-482104. This includes the two 60" aerodynamic CoreBar crossbars, the 4 Skyline towers that get mounted to the integrated channels on your tonneau cover, and the custom Landing Pads that are designed specifically for those tracks and can remain mounted even when you remove the rack and are using the cover. This system...
    view full answer...
  • Adapter Needed to Fit Thule Prologue Pack 515 Bike Rack to Rhino-Rack Vortex Crossbars
    Thank you for the details and the picture! Since you have everything to mount your (discontinued) Thule Prologue Pack 515 to the square bars all you need is the Thule Ride-On Adapter # TH532 to mount this bike rack to your Rhino-Rack Vortex crossbars. The only problem is that this adapter is the only thing available for a Prologue Pack bike rack and it is only able to accommodate 2 bikes. So if you only need to transport 2 bikes then you will be all set. Otherwise you need a new bike...
    view full answer...
  • How to Transport 5 Bikes on 2008 VW Passat Wagon with Class I Trailer Hitch
    You are correct that a light-duty 1-1/4-inch Class I hitch like # 24848 has a 200-lb tongue weight (TW) capacity. However, when it comes to bike racks there is another factor that comes into play, leverage on the hitch tube. The more bikes the rack holds the longer it tends to be, naturally. This increased distance from the hitch to the outermost bike translates into extreme leverage forces on the hitch tube, forces that would damage a light-duty Class I hitch. For this reason all Class...
    view full answer...
  • Best Way to Carry Bikes on a 2016 Mini Countryman
    There are two Yakima racks (The Halfback, # Y02636, and Fullback # Y02634) that are confirmed to fit your 2016 Mini Countryman. However, they both need to be converted to anchor mode which can cause damage to the headliner of your Mini over a period time. So if you're not gonig to be carrying your bikes very far or very often they are good options. If you will be carrying them longer the Hollywood Racks Over-the-Top carriers are a better option. Both the 2-bike, # HRF2 and 3-bike,...
    view full answer...
  • How to Carry 3 Bikes on a 2013 Mazda 3 Sport Hatchback
    There is 1 bike rack that meets all of your needs, the Thule Helium Aero Aluminum 3 Bike Rack, # TH9043PRO. The Thule brand is well respected in the biking community and this rack is made right here in the USA. I have attached a demonstration video of this bike racks for you to check out. I noticed you are planning on using the bike rack on a 2013 Mazda 3 Sport Hatchback. All of the trailer hitches available for your vehicle are Class I rated, which means you will be limited to carrying...
    view full answer...
  • Recommendations For Carrying 3 Bikes And A Trike On 2010 Mazda CX-9
    The trailer hitch I recommend for your CX-9 is the Curt Trailer Hitch, part # 13575. This is a Class lll hitch and it has a 2 inch receiver opening. I have attached a link to an installation video for this hitch on a 2010 CX-9 you can check out. Carrying 3 standard and one 3-wheel trike is going to be difficult. Although costly, I recommend a hitch-mounted carrier like the Hollywood Racks Sport Rider SE2 Trike Carrier, part # HR1450Z-E-TRKADP3. This will carry the trike and one additional...
    view full answer...
  • How Does the SportRack Downshift Plus # SR4624 Lock to Vehicle Crossbars
    The SportRack Downshift Plus # SR4624 has the ability to lock the bike to the rack, but not the rack to the vehicle crossbars. To do that you would have to loop a cable lock # e98891 through your bike and around the crossbars on your vehicle. If you want bike rack and bike locks out of a roof mount bike rack then we have some other options for you. For a similar aluminum bike rack we have the Inno Fork Lock III # INA391. It comes with a locking lid that secures your bike to the bike...
    view full answer...
  • Does the Swagman Upright Roof Bike Carrier # S64720 Lock to Crossbars
    Many bike roof mounted bike racks do indeed have locks to secure them to a roof rack, but the Swagman Upright Roof Bike Carrier you referenced is not one of them. The most reasonably priced rack we offer that is compatible with the Thule AeroBlade crossbars that can lock the bike and lock to the crossbars would be the Inno Fork Lock III Bike Carrier # INA391. This is a fork mount rack, so the bike would need quick-release front hubs. I have attached a review video of the Inno Fork...
    view full answer...
  • Bike and Kayak Carrier for Inno Rack on 2010 Dodge Caliber
    The Inno roof rack that fits your 2010 Dodge Caliber uses 50" square crossbars # INB127 which are 7/8" tall x 1-1/4" wide, although your vehicle also has a crossbar spread of 20" and kayak carriers generally need a minimum spread of 24". Due to that I recommend using the Yakima Crossbar Pads # Y07415 to carry your kayak; these are 30" long pads and to secure your kayak the Quick Draw Tie-Down Ropes # TH855XT and Cinch Straps # TH521. For a bike rack I recommend checking out the Inno...
    view full answer...

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