G-Form X4 Knee Guards
Best flexible impact protection for mountain bikers tackling demanding trails.
These guards balance high-impact protection with a low-profile, flexible design that won't hinder your pedaling. They are built for all-day comfort, using breathable materials and smart ventilation to keep you cool while you ride.
$62.95
at
Mike's Bikes
More Pro-X options
G-Form Pro-X2 Knee Pads
$35.99
G-Form Pro-X3 Shin Guards
$44.99
G-Form X4 Elbow Guards
$69.99
G-Form X4 Ankle Guards
$29.99
G-Form Pro-X4 Elbow Guards
$59.99
G-Form Pro-X3 Elbow Guard
$49.99
G-Form Pro-X3 Elbow Guards
$39.99
G-Form Pro-X3 Shirt
$49.99
G-Form PRO-X3 Elbow Pads
$61.50
G-Form Pro-X4 Knee Guard
$79.99
G-Form Pro-X3 Shin Guard
$44.99
G-Form Pro-X4 Shorts
$119.99
G-Form Pro-X3 Shin Guards
$39.99
G-Form Pro-X3 Elbow/Forearm Guard
$59.99
G-Form Pro-X3 Shin Guards
$54.99
G-Form Pro-X4 Ankle Guard
$29.99
G-Form Pro-X3 Shin Guard
$74.99
G-Form Pro-X4 Shorts
$119.99
Who it's for
- Aggressive riders needing reliable impact protection without bulk
- Endurance cyclists prioritizing comfort on long, all-day rides
- Frequent riders who value easy maintenance and gear hygiene
Who should skip it
- Downhill racers needing maximum abrasion resistance for high-speed crashes
- Riders training in extremely hot or humid environments
- Athletes between sizes who struggle with consistent gear fit
Performance breakdown
Impact absorption
SmartFlex technology stiffens instantly to dissipate energy during hard crashes.
Pedaling comfort
Flexible material allows for full range of motion without restrictive bunching.
Stay-put security
Internal grippers effectively prevent slippage during long, sweaty trail sessions.
Breathability
Lightweight construction keeps airflow consistent even on warmer riding days.
Bulk profile
Low-profile design fits easily under riding pants without looking bulky.
Durability
Soft-shell construction prioritizes comfort over heavy-duty abrasion resistance.
Impact absorption
SmartFlex technology stiffens instantly to dissipate energy during hard crashes.
Pedaling comfort
Flexible construction allows for a full, unrestricted range of motion.
Stay-put security
Internal grippers effectively prevent slippage during long, sweaty rides.
Breathability
Lightweight materials keep airflow high even on warm summer days.
Bulk profile
Low-profile design fits easily under riding pants without bunching.
Durability
Soft-shell construction prioritizes comfort over heavy-duty abrasion resistance.
Still have a question?
Ask Metto anything about the G-Form X4 Knee Guards before you decide.
