Thule 599xtr Big Mouth

Thule 599xtr Big Mouth
  • Thule 599xtr Big Mouth Alternate Image Thumbnail
Price: $179.95
Price Match
Status: In Stock

Product Code: 100599xtr

Open Box Price: $142.95

Currently In Stock: 1

Product is complete, in near-mint condition, and comes with a full warranty. Packaging may be damaged.
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The Thule 599XTR Big Mouth bike racks are well designed with an easy to reach adjustment lever. The Thule 599xtr Big Mouth holds bikes with oversized down tubes safely in an upright position without having to remove the front wheel.


  • Easy to mount, convenient rack level bike clamping feature
  • Worry free automatic self-adjusting jaws for perfect bike clamping every time
  • Accommodates bike frames up to 3 3/8 inch in diameter
  • Wheel tray supports tires up to 2.6 inches wide
  • 1 One-Key lock cylinder (sold separately) locks the bike to carrier and carrier to rack
  • Black anodized aluminum wheel tray is built to last
  • Fits both Thule square load bars and Yakima round crossbars
  • Requires Thule xadapt2 to mount to Rapid Aero Bars, Thule Xsporter, and Thule Professional Racks
  • Factory rack compatible with Thule Ride-On Adapter, sold separately


Weight: 12.4lbs

Length (carton): 57"

Width (carton): 10.5"

Height (carton): 4"

UPC: 091021599376

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Thule warranty information.

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Thule 599xtr Big Mouth
5 -

It needs 2 more allen bolts and square nuts to make it ultra stable .the Holes already exist in the yoke's frame.

2012 Ford Fiesta 5dr

Thule 599xtr Big Mouth
5 -

I bought two of these Thule racks. When I got them home I found that neither my Trek or my Spark mountain bikes, both with use a standard size mountain bike tire, will fit in these racks. The straps are too short to go around the rim and tire! So, I contacted Thule, after all, these are expensive racks. Here is their response, and I quote: Thank you for contacting Thule Customer Service. The only suggestion we can recommend is to let air out of the tires. Unfortunately Thule does not offer longer replacement straps for the Big Mouth. So, basically, what Thule said is, "You are on your own, our rack doesn't work with mountain bikes, so you will have to LET THE AIR OUT OF YOUR TIRES EVERYTIME YOU TRY TO USE OUR RACK! Terrible product, terrible company. These don't work with mountain bikes, so stay away from them.

2009 Prius Prius

Reply from Rack Attack 8/23/2016

Jesus, I'm sorry to hear that. We've had no problem with the bigmouth carrying standard tires, just not super beefy ones. I'm kind of upset with Thule's reply, especially since it's entirely incorrect. You can use the straps from the Thule Sidearm in this, they're about 4" longer and would solve your problem. Give us a call and we'll see how we can help you out.

Thule 599xtr Big Mouth
5 -

Works great.

2016 GMC Canyon Crew Cab

Thule 599xtr Big Mouth
5 -

Best value for the price

2012 BMW X5

Thule 599xtr Big Mouth
5 -

Excellent device

2005 Toyota RAV4

Thule 599xtr Big Mouth
5 -

These are fantastic racks. If you need to put a lot of bikes very close together and have 20mm or 15mm thru axles, this is a great rack to use. I haul 4 DH bikes on a regular basis on my car. I've been in serious cross-winds, winding roads, etc and have never had an issue with these. best rack for the price.

2002 Saab 9-5

Frequently Asked Questions

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