CNC Forged 4-Piston Disc Brake Caliper for Motorcycle Modification

Upgrade your motorcycle's stopping performance with this precision-engineered 4-piston hydraulic disc brake caliper. Built from high-strength CNC-forged aluminum alloy with a universal 100mm center distance, this caliper fits the vast majority of mainstream motorcycle models with zero custom adapter codes needed. Whether you're commuting through city streets, tackling mountain roads, or pushing the limits on competitive bends, this caliper delivers smooth, linear, and confident braking in every situation.

Key Features

Opposed 4-Piston Structure: Even force distribution across all pistons eliminates one-sided wear, delivering a delicate, linear braking stroke — gentle at first touch, powerful under full load. No nodding or tail-shake during sudden stops at speed.
Universal 100mm Bolt Spacing: Designed for size 9, small cow, pole core, electric motorcycles, and scooters. Direct bolt-on fit at the original mounting position — no damage to the vehicle, no extra adapter plates, low modification threshold.
CNC All-Aluminum Forged Body: High-strength integral aluminum alloy forging, precision CNC-cut with hollow weight-reduction channels that optimize heat dissipation. Withstands sustained high-intensity braking on long downhill runs without thermal fade.
High-Temperature Oil Seal Components: All-season sealing integrity — performs reliably in heavy rain, summer heat, and cold winter rides. No oil leakage, no piston seizure.
Smooth, Drag-Free Piston Return: High-precision sealing allows the piston to rebound quickly upon brake release, eliminating continuous disc rubbing and extending the life of your brake pads and rotor.
Thickened Reinforced Ribs: Shell design resists deformation on rough terrain and during intense riding, maintaining structural integrity through long-term, high-intensity use.
Multi-Color Anodized Finish: Choose from Bright Black, Vibrant Red, Earthy Gold, or Metallic Silver. Durable anodized coating resists peeling and holds a rich lustre to match any build style — Black Knight, race-inspired, or clean OEM look.

Specifications

Type: 4-Piston Hydraulic Disc Brake Caliper
Material: CNC Forged Aluminum Alloy
Center Distance: 100mm (standard locking point)
Model: JK26
Finish: Anodized (multiple colors available)
Country of Origin: Made in Mainland China

Ideal Use Cases

Daily Urban Commuting: Soft, smooth start-stop control for comfortable city riding
Mountain Road Cycling: Consistent, fade-resistant braking on sustained downhill runs
Mild Competitive Riding: Controlled, predictable braking output for tighter cornering confidence

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Safe Riding Resources

For motorcycle safety standards and best practices, visit the NHTSA or review brake system maintenance guidelines from the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What motorcycles is this 100mm disc brake caliper compatible with?

A: This caliper uses the industry-standard 100mm center distance (bolt spacing), making it compatible with the vast majority of mainstream motorcycle front wheel modification positions including size 9 bikes, small cow models, pole core bikes, electric motorcycles, and scooters. No custom adapter plates are required — it bolts directly to the original caliper mount.

Q: Does this caliper experience brake fade during extended downhill or high-intensity braking?

A: The CNC-forged aluminum alloy body features hollow weight-reduction channels engineered to accelerate heat dissipation. Combined with high-temperature resistant oil seal components, this caliper maintains consistent braking output during sustained high-intensity use, making it well-suited for long downhill rides and repeated stop-and-go riding.

Q: How difficult is installation and what tools are needed?

A: Installation is straightforward thanks to the 100mm universal bolt spacing that matches OEM mounting positions on most motorcycles. Standard hand tools are sufficient — no specialized workshop equipment or custom adapter hardware is required. The low modification threshold makes this an accessible upgrade for DIY mechanics and professional shops alike.

Q: Are color finishes durable, and will they chip or peel over time?

A: All color options — Bright Black, Vibrant Red, Earthy Gold, and Metallic Silver — feature an anodized finish that bonds at a molecular level to the aluminum surface. This process creates a harder, more durable coating than standard paint, offering excellent resistance to chipping, peeling, and UV fading under normal riding conditions.