Description 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” Reviews Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
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.
Was this review useful to you?
Yes /
No Thank you for your feedback.
Prompt shipment
These were delivered to me quickly & brand new as expected
I installed them about 300 miles ago and have been very happy
Was this review useful to you?
Yes /
No Thank you for your feedback.
Reviewed 1/24/2019
by PNW RAD Rider
Daily Commuter
Seattle, WA
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.
Was this review useful to you?
Yes /
No Thank you for your feedback.
Reviewed 3/9/2018
by Anonymous
Cycling Enthusiast
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.
Was this review useful to you?
Yes /
No Thank you for your feedback.
Mechanic's Corner A guide to common bike tire sizes and how to find the tires that will fit your bike.
Understanding older bicycle tire sizes.
A useful chart for determining the tire size you need for your bicycle.
Tips for proper bicycle tire mounting and tire safety.
A guide to understanding tire width.
A guide to understanding bicycle tire tread patterns and what you should look for.
