FM576
DESCRIPTION
SAGMIT CRAZYBOOST V3 XC MTB Frame
Lightweight Performance for XC Riding
The SAGMIT CRAZYBOOST V3 XC is designed for mountain bikers looking for a lightweight, practical, and performance-oriented frame for cross-country riding.
Built from T6 heat-treated 6069 aluminum alloy, the frame combines a robust construction with an approximate weight of 1,600 g without accessories. Its modern component standards, including BOOST 148 rear spacing, UDH compatibility, and a BSA threaded bottom bracket, provide a versatile foundation for a custom MTB build.
Compatible with 27.5" and 29" wheel configurations, the CRAZYBOOST V3 XC offers flexibility for riders building a cross-country mountain bike to suit their riding style.
Built for Modern XC Builds
FEATURES
T6 Heat-Treated 6069 Aluminum Alloy The 6069 aluminum alloy frame features T6 heat treatment and a high-temperature baked-paint finish. Designed for regular mountain bike use, it combines a performance-oriented structure with a clean, durable finish.
Lightweight Frame Design Weighing approximately 1,600 g without accessories, the CRAZYBOOST V3 XC provides a lightweight foundation for an XC mountain bike build. Actual complete-bike weight will vary depending on the fork, wheels, drivetrain, brakes, and other components.
BOOST 148 Rear Hub Standard The frame uses a 12×148 mm BOOST rear axle standard. This interface is designed for compatible BOOST rear hubs and wheels. Verify hub, axle, and drivetrain compatibility before assembly.
UDH-Compatible Rear Derailleur Interface The Universal Derailleur Hanger (UDH) interface supports compatible UDH hanger and drivetrain configurations. Check the rear derailleur manufacturer's specifications to confirm compatibility.
BSA 73 mm Threaded Bottom Bracket The 73 mm BSA threaded bottom bracket shell supports compatible threaded bottom bracket systems. This widely used standard offers a practical solution for installation, servicing, and routine maintenance.
27.5" and 29" Wheel Options The frame is designed to accommodate compatible 27.5" and 29" wheel setups, with a maximum specified tire size of 29 × 2.2". Actual fitment depends on wheel size, tire dimensions, rim width, and frame clearance.
Three Frame Sizes for a Better Fit Available in M, L, and XL, the CRAZYBOOST V3 XC provides size options for different rider heights. Rider-height recommendations are a starting point; frame geometry, inseam, reach, and personal fit preferences should also be considered.
Specifications
Specification
Details
Brand
SAGMIT
Model
CRAZYBOOST V3 XC
Product Type
XC Mountain Bike Frame
Frame Material
6069 Aluminum Alloy
Heat Treatment
T6
Finish
High-Temperature Baked Paint
Approx. Frame Weight
1,600 g, without accessories
Available Sizes
M / L / XL
Head Tube Interface
42 × 52 mm
Bottom Bracket
BSA, 73 mm, Threaded
Rear Axle Standard
12 × 148 mm BOOST
Seatpost Diameter
31.6 mm
Recommended Fork Length
515 mm
Wheel Compatibility
27.5" / 29"
Maximum Specified Tire Size
29 × 2.2"
Disc Rotor Compatibility
160 mm
Rear Derailleur Hanger
UDH Compatible
Service
We provide PDF documents for installation instructions for various products.
You can check out our installation and maintenance videos for FrontFork.123
FM576
2024-2025 Catalog
Learn how to quickly set sag, air spring pressure, compression adjustments, rebound adjust, additional tuning options and more.
The recommended settings in this tuning guide are designed to be a starting point, in order to get you out on your first ride in as few steps as possible.
