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In gravel racing, variable terrain separates the fast from the fastest. The new GXR tire is ultra-efficient when it’s smooth and bites hard when conditions get loose. With supple casing, a fast-rolling center tread, and refined shoulder knobs, you get speed and grip for every surface.


A streamlined center tread minimizes rolling resistance on hardpack and pavement, while 45c and 50c race-volume profiles support lower pressures for improved efficiency across mixed terrain.
Compared to the CADEX GX 40c, the GXR 45c delivers a measured –1.52-watt reduction in rolling resistance per tire (–3.03 watts per bike), enabling higher sustained speed on fast gravel sectors and smoother transitions between surfaces.
CADEX GXR 45c VS. CADEX GX 40c ROLLING RESISTANCE (PER WHEEL):
CADEX GX 40c
32.41W

RACE-BALANCED TRACTION
Refined shoulder knob geometry delivers predictable grip for cornering and off-camber transitions across loose gravel, sand, and variable surfaces. A 170 TPI supple casing allows the tire to conform to the terrain, maintaining consistent contact and control without increasing rolling resistance.

A dual-layer system combines Race Shield+ protection under the center tread with reinforced X-Shield sidewalls to resist cuts, punctures, and abrasion. This bead-to-bead construction improves durability in race conditions while keeping weight low and ride quality smooth.
Engineered for high-speed gravel racing, the CADEX GXR Tire balances rolling efficiency, traction, and durability across mixed terrain. A fast-rolling center tread, high-volume casing, and reinforced protection layers deliver maximum speed on open sectors and complete control when conditions are unpredictable.
• Race-Optimized Tread — A streamlined center tread reduces rolling resistance, delivering higher sustained speed across open hard pack, pavement, and gravel transitions.
• Race-Volume Profile — A 45c or 50c casing optimized for the Max GXR’s 25mm internal rim width creates a rounder, more efficient tire profile to balance speed, stability, and compliance at lower pressures across variable terrain.
• Refined Shoulder Knobs — Reshaped shoulder knob geometry provides predictable cornering grip across loose gravel, sand, and light mud without compromising straightline rolling efficiency.
• Dual Shield Protection— Race Shield+ under the center tread and reinforced X-Shield sidewalls combine to provide bead-to-bead puncture and abrasion protection, delivering race-level durability without added weight.
• 170 TPI Supple Casing — A super-supple 170 TPI race casing allows the tire to conform to uneven terrain, maximizing traction, compliance, and ride feel without sacrificing speed.
KEY TECHNOLOGIES
• CADEX GX-S Dual Compound
• CADEX Race Shield puncture protection
• 170 TPI CADEX Supple Race Casing


Size 700x45c / 700x50c
Weight
/ 530g
ETRTO 45x622 / 50x622
MAX Pressure 50 PSI / 3.4 BAR
MIN Pressure 25 PSI / 1.7 BAR
Suggested Rim Inner Width 25 – 30mm
Bead Kevlar®
Bead Type Folding
Compound
Casing
Puncture Protection
GX-S Dual Compound
170 TPI supple casing
Dual Shield (Race Shield + X Shield) tread and sidewall puncture protection
DUAL SHIELD PUNCTURE PROTECTION
Exclusive Race Shield+ and X-Shield combine for outstanding bead-to-bead tread and sidewall protection.
GX-S DUAL COMPOUND
GX-S dual compound technology features a two-compound tread. The fast-rolling middle section improves rolling efficiency. The side sections use a softer side compound for better grip and cornering traction in variable conditions and terrain.



