






BIGROCK Gen 3 Carbon Crankset with 24mm Titanium Spindle | Ultra-Light Road Bike Crankset & P1 Power Meter
BIGROCK Gen 3 Carbon Crankset with 24mm Titanium Spindle
Ultra-Lightweight Carbon Road Crankset Platform for Modern Performance Builds
The BIGROCK Gen 3 Carbon Crankset is designed for riders seeking a lightweight, stiff and race-focused drivetrain upgrade for modern road bikes.
Built around a high-strength carbon crank arm structure and paired with an ultra-light 24mm titanium spindle, the Gen 3 platform delivers excellent power transfer while keeping overall system weight extremely low.
Available in a wide range of crank lengths from 140mm to 172.5mm to support different riding styles, bike fits and performance preferences.
The system is also compatible with the BIGROCK P1 Power Meter for riders looking to build a lightweight integrated power measurement setup.
Key Features
• Gen 3 lightweight carbon crank arm construction
• Ultra-light 24mm titanium spindle
• Road racing focused stiffness-to-weight ratio
• Wide crank length range from 140mm to 172.5mm
• Compatible with BIGROCK P1 Power Meter
• Clean modern aerodynamic design
• Optimized for lightweight road bike builds
Available Options
Crankset Only
• 140mm
• 145mm
• 150mm
• 155mm
• 157.5mm
• 160mm
• 162.5mm
• 165mm
• 167.5mm
• 170mm
• 172.5mm
Power Meter Options
• BIGROCK Gen 3 P1 Power Meter
• BIGROCK Gen 3 Crankset + P1 Power Meter Bundle
•BIGROCK P1 Power Meter
Lightweight Performance Power Meter for Modern Road Bikes
• ±1% Power Accuracy
• 0–2200W Power Measurement
• Supports Power, Cadence & Left/Right Balance Data
• Approx. Weight: 110g
• Up to 260 Hours Battery Life
• USB Magnetic Charging
• IP68 Waterproof Rating
• ANT+ & Bluetooth Connectivity
• Compatible with Garmin, Wahoo, Bryton, iGPSPORT and More
• EASTON Direct Mount Interface
• Supports iOS & Android Apps
Material
• Carbon Fiber Crank Arms
• 24mm Titanium Spindle
• 180kg Fatigue Tested
• 820,000+ Crank Fatigue Cycles
• 2,000,000+ Titanium Spindle Fatigue Cycles
• 35% Higher Stiffness vs Similar Products
• 130% Stronger than Standard Steel Spindles
• 50% Lighter than Steel Spindle Systems
• Carbon + Aluminum Hybrid Construction
• Over 25g Weight Saving
Important Pre-Order & Shipping Information
This is a newly released product with limited initial production availability.
Due to high launch demand and ongoing batch production scheduling, some crank length and power meter configurations may require additional preparation time before shipment.
Estimated handling time may take up to 2 weeks depending on the selected version and current inventory status.
Orders will be shipped in sequence based on production availability.
Thank you for your patience and support for the BIGROCK Gen 3 launch.
Compatibility Check: Due to the complexity of original equipment manufacturer (OEM) parts' models and batches, there may be instances where this product is incompatible.
Upon receiving this product, please compare it with the OEM specifications to ensure compatibility before installation.
Torque Specifications: Install this product strictly according to the torque values specified in the OEM parts manual.Installation Issues: If you encounter any discrepancies with the OEM specifications or face difficulties at the initial stage of installation, stop immediately and contact customer service for assistance with returns or exchanges.
No Forced Installation: Do not force installation under any circumstances.Liability: Any damages resulting from forced installation or unauthorized modifications of this product (or its components) will be the sole responsibility of the buyer.
All products are photographed to accurately represent the colors you will see upon receipt.
Due to differences in lighting, angles, or screen settings, slight color variations may occur.
The actual product should be considered the standard.For "colored" and "blue" products, the coloring process may result in uneven color distribution, making each product unique.
| S-PARTS Common Torque Reference Table for Bicycle Series | ||||||
| Ingredient | Component Name | Screw Name | Reference Torque | Anti-seize Usage | Medium-strength Threadlocker Usage | Special Requirements Remarks |
| Frame System | Handlebar Assembly | M4 Stem Fixing Screws | 4NM | Recommended | Consider with Caution | For special structure handlebar assemblies, please refer to the original manufacturer's recommended torque specifications. |
| M5 Stem Fixing Screws | 5NM | Recommended | Consider with Caution | |||
| M6 Stem Fixing Screws | 6-8NM | Recommended | Consider with Caution | |||
| M7 Handlebar Fixing Screws (Brompton) | 8-10NM | Recommended | Consider with Caution | |||
| M8 Stem Fixing Screws (BMX) | 8-10NM | Recommended | Consider with Caution | |||
| Headset | Headset Preload Screws (including M5/M6) | 4-6NM | Recommended | Not Recommended | ||
| Frame/Fork | M3 Fork Hose Clamp Screws | 1-2NM | Recommended | Not Recommended | For special structure seatpost clamps, please refer to the original manufacturer's recommended torque specifications. | |
| Water Bottle Cage Screws | 4NMM | Recommended | Not Recommended | |||
| M4 Derailleur Hanger Fixing Screws | 3-4NM | Recommended | Consider with Caution | |||
| M5 Derailleur Hanger Fixing Screws | 4-5NM | Recommended | Consider with Caution | |||
| M5 Front and Rear Rack Fixing Screws | 6-7NM | Recommended | Consider with Caution | |||
| M5 Seatpost Clamp Screw (Standard Clamp Design) | 6-7NM | Recommended | Not Recommended | |||
| Seatpost | M5 Saddle Rail Clamp Screws | 6-7NM | Recommended | Not Recommended | ||
| M6 Saddle Rail Clamp Screws | 7-9NM | Recommended | Not Recommended | |||
| M7 Saddle Rail Clamp Screws | 8-10NM | Recommended | Not Recommended | |||
| M6/M7 Single-Bolt Saddle Rail Clamp Screws | 10-12NM | Recommended | Not Recommended | |||
| M8 Single-Bolt Saddle Rail Clamp Screws (Brompton) | 12-14NM | Recommended | Not Recommended | |||
| Wheelset | M6 Quick-Release Wheelset Locking Screws | 6-8NM | Recommended | Not Recommended | ||
| M10 BMX Wheelset Locking Screws | Recommended | Not Recommended | ||||
| M14 BMX Wheelset Screws | Recommended | Not Recommended | ||||
| M9 Wheelset Locking Nuts | 12-14NM | Recommended | Not Recommended | |||
| M10 Wheelset Locking Nuts | 14-16NM | Recommended | Not Recommended | |||
| M12 Thru-Axle Bolt | 10-14NM | Recommended | Not Recommended | |||
| M14 Thru-Axle Bolt | 12-16NM | Recommended | Not Recommended | |||
| Brake System | Disc Rotor | Six-Bolt Disc Rotor Screws | 5-7NM | Consider with Caution | Recommended | Do not use anti-seize compounds or liquid thread lockers on screws related to the brake hydraulic system to avoid contaminating the hydraulic lines. |
| Center Lock Disc Rotor | 40NM | Recommended | Not Recommended | |||
| Brake Lever | M5 Brake Lever Fixing Screws | 5-7NM | Recommended | Not Recommended | ||
| M6 Brake Lever Fixing Screws | 6-8NM | Recommended | Not Recommended | |||
| Road Bike Shifter Fixing Nuts | 6-8NM | Recommended | Not Recommended | |||
| Brake Lever Bleed Port Screws | 2-3NM | Not Recommended | Recommended | |||
| Disc Brake Caliper | M6 Mountain Bike Caliper Fixing Screws | 9NM | Consider with Caution | Recommended | ||
| M5 Flat Mount Caliper Fixing Screws | 7NM | Consider with Caution | Not Recommended | |||
| M8 Hose Compression Fitting Screws | 6-7NM | Not Recommended | Not Recommended | |||
| M6 Caliper Body Screws | 12NM | Not Recommended | Not Recommended | |||
| M7 Caliper Body Screws | 14NM | Not Recommended | Not Recommended | |||
| M8 Caliper Body Screws | 14NM | Not Recommended | Not Recommended | |||
| M6 Caliper Banjo Screws | 12NM | Not Recommended | Not Recommended | |||
| Caliper Bleed Screws | 5-6NM | Not Recommended | Not Recommended | |||
| Brake Pad Pin | 3NM | Not Recommended | Not Recommended | |||
| C-Brake Caliper | Single Pivot Caliper Fixing Nut | 8NM | Not Recommended | Recommended | ||
| Dual Pivot Caliper Fixing Screws | 6-8NM | Consider with Caution | Consider with Caution | |||
| Brake Pad Fixing Screw Set | 7NM | Consider with Caution | Consider with Caution | |||
| Brake Pad Stop Screws | 3NM | Not Recommended | Not Recommended | |||
| Caliper Release Lever Screws | 3NM | Not Recommended | Not Recommended | |||
| Cable Anchor Screws | 5-7NM | Recommended | Not Recommended | |||
| Drivetrain System | Shifter | Shifter Clamp Bolt | 4-6NM | Recommended | Not Recommended | Do not use anti-seize compounds or liquid thread lockers on screws related to the brake hydraulic system to avoid contaminating the hydraulic lines. |
| Shifter Integration Bolt | 4-6NM | Recommended | Not Recommended | |||
| Shifter Top Cap Bolt (Shimano) | 4NM | Recommended | Not Recommended | |||
| Front Derailleur | Direct Mount Front Derailleur Fixing Bolt | 6-7NM | Recommended | Not Recommended | ||
| Front Derailleur Clamp Bolt | 5-7NM | Recommended | Not Recommended | |||
| Front Derailleur Cable Adjusting Bolt | 5-7NM | Recommended | Not Recommended | |||
| Rear Derailleur | Rear Derailleur Pivot | 10-12NM | Recommended | Not Recommended | ||
| UDH System Rear Derailleur Pivot | 25NM | Recommended | Not Recommended | |||
| M4 Pulley Bolt | 3NM | Consider with Caution | Consider with Caution | |||
| M5 Pulley Bolt | 4NM | Consider with Caution | Consider with Caution | |||
| M3 Rear Derailleur Lock Cover Bolt (Shimano) | 1.5NM | Not Recommended | Not Recommended | |||
| Rear Derailleur Cable Adjusting Bolt | 5-7NM | Recommended | Not Recommended | |||
| Crankset | Chainring Double-Sided Bolt | 6-8NM | Consider with Caution | Consider with Caution | ||
| Single Chainring Bolt | 8NM | Consider with Caution | Consider with Caution | |||
| M5 Crank Arm Bolt (SRAM 3-bolt) | 7NM | Consider with Caution | Consider with Caution | |||
| M4 Crank Arm Bolt (SRAM 8-bolt) | 4-5NM | Consider with Caution | Consider with Caution | |||
| M6 Crank Arm Fixing Bolt (Shimano) | 12-14NM | Consider with Caution | Consider with Caution | |||
| Crank Arm Cap (Shimano) | 2-4NM | Not Recommended | Not Recommended | |||
| Crank Arm Fixing Bolt (DUB) | 54NM | Recommended | Not Recommended | |||
| Crank Arm Fixing Bolt (Rotor) | 30-35NM | Recommended | Not Recommended | |||
| Crank Arm Fixing Bolt (EE) | 52NM | Recommended | Not Recommended | |||
| M8 Square Taper Crank Bolt | 30NM | Recommended | Not Recommended | |||
| Pedals | Pedal Axle | 25NM | Recommended | Not Recommended | ||
| Road Cleat Fixing Bolt (3-bolt) | 6-8NM | Not Recommended | Recommended | |||
| MTB Cleat Fixing Bolt (2-bolt) | 8NM | Not Recommended | Recommended | |||
