GRELiving fat bike tire liners 110mm Fits 4-5 Inch Tires, 2-pack polyurethane puncture protector, 2300mm long

GRELiving 2 Pack Fat Bike Tire Liners are thin, durable polyurethane strips that sit between tube and tire to reduce punctures for 4–5.5" wide tires.

These liners are made to protect inner tubes on fat bikes, mountain bikes, e-bikes and snow bikes without adding significant weight or complexity. Each pack contains two 110 x 2300 x 1 mm liners engineered with a reinforced center to resist sharp objects and extend tire life. They are compatible with wheel diameters 20", 24", 26", 27.5" and 29" when used with wide tires in the 4–5.5 inch range.

How do these liners reduce punctures while riding?

The liners act as a sacrificial barrier between the tire casing and the inner tube. When you roll over glass, thorns or embedded debris, the polyurethane strip helps stop the object from reaching the tube, lowering the chance of flats and pinch punctures.

• Thicker center section adds extra resistance at high-impact points
• Lightweight polyurethane minimizes added rotational weight
• Full-length 2300 mm coverage for most fat-bike circumferences
• Reduces frequency of roadside repairs and tube replacements

Will these fit my bike and tire size?

Each liner measures 110 mm wide and 2300 mm long with a 1 mm thickness, designed specifically for tires that are 4 to 5.5 inches wide. They work across common wheel diameters—20", 24", 26", 27.5" and 29"—but you should measure your tire circumference before trimming to ensure proper fit.

• 110 x 2300 mm size ideal for fat bike tire widths 4–5.5"
• Compatible with 20", 24", 26", 27.5" and 29" wheels
• Trim-to-fit design lets you cut to exact rim circumference
• Sold as a two-piece set — enough for both wheels

How easy is installation and trimming?

Installing these liners is straightforward: insert the strip between the tire and tube before seating the bead. The product is intended to be measured against your tire circumference and trimmed with scissors or a utility knife for a snug, continuous fit.

• Place liner inside tire before putting the tube in
• Mark and trim to match your wheel circumference
• Ensure even placement to avoid bulges or uneven pressure
• No adhesives required; fits securely under the tire bead

What are the material and durability advantages?

The liners use high-quality polyurethane, chosen for tear resistance and low weight. A reinforced middle strip improves puncture resistance where contact forces are greatest, helping the liners last through multiple rides and rough terrain.

• Durable polyurethane resists tears and cuts
• Lightweight construction keeps rotational mass low
• Reinforced center increases resistance to sharp objects
• Designed to extend tube life and reduce maintenance

Who is this for? Riders who run wide tires—fat-bike, snow-bike, and many e-bike and mountain-bike setups—will gain immediate protection from common road and trail hazards. Choose GRELiving liners if you want a simple, low-weight puncture defense that’s easy to install and trimmed to fit your wheel circumference. Confirm your tire width (4–5.5" required) before purchase to ensure proper compatibility.