The Flexxboot® System pairs premium Taiwan-made, high-stretch NEO 50 / CR +32 rubber boots with tools that install them right on the vehicle. Built to outlast the throwaway Chinese-made boots flooding the market.

Rapid Flexx GunCheap Chinese-made CV and rack & pinion boots crack, split, and come back into your bay months later. Flexxboot boots are molded in Taiwan from a specially formulated high-stretch compound — the difference is measured in years, not months.
Shop our boots on Amazon for current pricing and availability. For tools, grease, clamps and wholesale orders, call 1-866-694-5369.

Fits axles 14–19 mm. Universal replacement for ATVs and small cars — interchanges with OEM numbers from Yamaha, Can-Am, Honda, John Deere, Kawasaki, Kubota, Kymco, Polaris, and Suzuki. Includes #3 + #4 Gomex clamps and CV grease.

Fits axles 19–24 mm — the mid-size car workhorse. High-stretch NEO 50 / CR +32 rubber, interchanges with 150+ OEM part numbers. Includes #3 + #4 Gomex clamps and CV grease.

Large-shaft universal CV boot set for bigger axles on trucks, SUVs, and full-size cars. Same Taiwan-made high-stretch compound, complete with clamps and grease.

Fits axles 24 mm and larger — universal replacement for Toyota-style constant velocity joints. Includes #3 + #4 Gomex clamps and CV grease packet.

Extra heavy-duty upgraded NEO 50 / CR +32 rubber. Fits over 97% of the world's cars with rack-and-pinion steering. Kit includes installation cone and two wire straps/end ties.

Air-compressor-powered tool that expands Flexx CV and rack-and-pinion boots right over the shaft — no axle removal. Replaces boots in one-third the usual time; save up to 70% on labor.

Purpose-built pliers for crimping ear-style CV boot clamps to a factory-tight seal. A must-have alongside every Flexxboot kit.

Tensions and locks band-style boot clamps evenly around the boot groove — clean installs, no leaks, no comebacks.

The same high-moly CV grease packed in every Flexxboot kit — stocked in bulk for the shop shelf.


Available in size #3 or size #4, in 25-count packs. The stainless clamps engineered for Flexxboot grooves.

Matched #3/#4 pairs, one of each per boot job. Available in packs of 10 or 25 pairs — never run short mid-install.
The system that made Flexxboot world-renowned: high-stretch boots plus the tools to install them without tearing down the axle.
Remove the failed boot and clean and re-grease the CV joint — the axle stays on the vehicle.
The Rapid Flexx Gun expands the high-stretch boot and slides it straight over the joint in seconds.
Secure with the included Gomex clamps. Total job time: minutes — up to 70% less labor than a traditional boot job.
Demos, instructionals, and technician round tables. Click any video to play.





Flexxboot has spent over two decades making CV boot installation quick, cheap, and profitable for professional technicians and serious DIYers alike.
While the market filled up with cheap Chinese-made split boots and short-life rubber, we stayed with what works: premium Taiwan manufacturing, a specially formulated high-stretch NEO 50 / CR +32 compound, and complete kits with clamps and grease in the box. That's why Flexxboot boots go on in minutes — and stay on for years.
Based in Woodside, New York, we ship the Flexxboot System to shops and distributors worldwide.
For wholesale pricing and bulk orders, call our team at 1-866-694-5369.
Buying for yourself? Shop Flexxboot on Amazon ↗.