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2XL - 26/29 x 2.35-3.0 (Green)
4XL - 26/29 x 4.1-5.0 (Teal)

Mr. Tuffy XL Series Tire Liners for Fat Bikes

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Mr Tuffy's legendary tire liners prevent puncture flats using their lightweight, super-durable urethane liners. The new XL series is made for fat bike and fits tires up to 5”.

  • 2XL fits 26”/29” x 2.35”-3.0”
  • 3XL fits 26”/29” x 3.1”-4.0”
  • 4XL fits 26”/29” x 4.1”-5.0”
  • 2XL - 26/29 x 2.35-3.0 (Green)

    Mfg PartNum: MRT2XL 

    Mfg PartNum: MRT2XL 

    3XL - 26/29 x 3.1-4.0 (Tan)

    Mfg PartNum: MRT3XL 

    Mfg PartNum: MRT3XL 

    4XL - 26/29 x 4.1-5.0 (Teal)

    Mfg PartNum: MRT4XL 

    Mfg PartNum: MRT4XL 

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    Reviewed 12/17/2018
    by Anonymous
    Casual Cyclist
    Value Rating
    Overall Rating
    Double skinned in Big Apple 2.35 29

    Double skinned these liners inside a 29 Big Apple 2.35 rear due to thorns. Stuck them together with thin double sided adhesive tape to hold them in together evenly during installation. Running BigBen 2on front with GreenGuard. The Apple needed more protection being on a norco vlt r2 ebike rear. Changing the rear is not quickeasy.

    High speed no problem. Top speed of 57.7 kph downhill into a bend stable.

    Make sure you cut overlap for better balancestability at speed. You can keep the excess in your spares kit as a worse case emergency sleeve. Installed just one initially leaving overlap and bike stability was impacted negatively above 40kph. Hence cut them

    Apart from that initial learning curve they've proven to be bullet proof onoff road.

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    Reviewed 8/7/2019
    by Anonymous
    Daily Commuter
    Tacoma, WA
    Value Rating
    Overall Rating
    Great product to simplify life

    I use these in mountain bike tires, both knobbies and smoother trail tires, the inconvenience of flats is greatly reduced and on a plus or fat bike the added weight is negligible.

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    Reviewed 8/30/2018
    by Cahuck
    melbourne, fl
    Overall Rating
    Prompt shipment

    These were delivered to me quickly & brand new as expected

    I installed them about 300 miles ago and have been very happy

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    Reviewed 1/24/2019
    by PNW RAD Rider
    Daily Commuter
    Seattle, WA
    Overall Rating
    1 of 1 customers found this review helpful.
    No more flats...yet

    Western was easy to order from, and Mr. Tuffy has proven its worth. I installed them myself inside Kenda tires on my RAD City Power Bike. I watched a video first, and because the Kenda tire was bigger than that shown in the video, the install was easier than I expected - smooth and complete. Up until Mr. Tuffy, I'd experienced a front flat and two rear flats since purchasing the RAD in late August 2018. Mr. Tuffy does seem to have slowed down the speed a tad, but there have been no more flats, the ride feels more secure, and that's riding on gritty, winter crud in the bike lanes where the flats occurred. Western shipped Mr. Tuffy sooner than I anticipated. I bought a set for my wife's RAD City too, but because she hasn't had a flat yet, she didn't want me to install them. One more thing. I'm 74 years-young, and if I can install Mr. Tuffy...well, maybe you can too.

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    Reviewed 3/9/2018
    by Anonymous
    Cycling Enthusiast
    Overall Rating
    1 of 2 customers found this review helpful.
    So far have not had a flat since installing the liners.

    I ride the fat tire bike on a lot of different terrain and had a couples of punctures in the past, So far no problems since installing the liners.

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