INTEGRA Series: The Balance Between Lightness and Strength
In the world of mountain bike racing, lightness and strength have always been a challenging balance.
Riders want nimble and responsive wheels without compromising reliability or impact resistance.
BTLOS INTEGRA X30 Carbon MTB Rims are designed for high-intensity XC, XCO, XCM, and XCC races, combining innovative structural concepts, precise layup techniques, and advanced material technology.
1. Optimized Fiber Continuity and Reinforced Spoke Interface
Traditional carbon rims often require post-production drilling for spoke holes, which can compromise fiber continuity and create stress concentration areas.
The INTEGRA series features a Fiber-Continuous Spoke Hole Design, where the spoke interface is structurally reinforced during the layup stage. This ensures continuous fiber alignment and even stress distribution around spoke holes.
Key Benefits:
- Tensile strength improved by approximately 15%
- Impact resistance increased by approximately 25%
- Fatigue life extended by over 30%
This design guarantees that the rims remain stable and durable even on rough XC trails or during prolonged high-intensity rides, minimizing the risk of cracks or delamination.
2. Bowl-Shaped Spoke Seat Platform: Even Stress Distribution
Building on the optimized fiber continuity design, BTLOS added a bowl-shaped spoke seat platform.
The carbon fibers around each spoke hole are molded into a concave shape during layup, allowing the spoke nipple to nest naturally and snugly with the carbon layers.
Advantages:
- Even spoke tension distribution
- Improved nipple alignment and assembly precision
- Enhanced long-term wheel stability
Paired with 120–130 kgf spoke tension, the INTEGRA I30X delivers highly consistent spoke support and precise handling, even under intense off-road conditions.
3. Multi-Layer Carbon Structure: Combining Stiffness and Compliance
The INTEGRA I30X uses a hybrid layup of Toray T700, T800, and T1100 high-performance carbon fiber. Strategic layering assigns different functions to each fiber type based on stress zones:
- T1100 High-Modulus Fiber: High-stress areas (spoke interface and rim shoulder) for maximum tensile strength
- T800 Reinforcement Layer: Provides overall structural rigidity and deformation resistance
- T700 Compliance Layer: Absorbs vibrations and shocks, enhancing riding comfort and crack resistance
Additionally, BTLOS employs a toughened epoxy resin system that efficiently absorbs impact energy, preventing brittle failure while allowing controlled deformation.
Lighter, stronger, and more durable rims that also enhance comfort and long-term performance.
4. Front-Rear Differentiated Design: Lightweight Yet Strong
The INTEGRA I30X series features a front-rear differentiated design to optimize handling and power transfer:
- Front Rim 235±15g: Lighter for terrain compliance and improved control
- Rear Rim 270±15g: Stiffer for torque transfer and structural support
Weight Configurations:
- Lightweight pairing (F&R 235) → Max rider weight: 100kg
- Standard pairing (F 235g / R 270g) → Max rider weight: 115kg
- High-strength pairing (F&R 270g) → Max rider weight: 125kg
5. Low-Profile Rim Design: 22mm Height Advantages
The 22mm low-profile rim enhances vertical compliance. On rough trails with rocks, roots, and uneven terrain, the rim flexes slightly to absorb impacts, reducing vibration transfer.
Benefits include:
- Improved long-distance riding comfort
- Increased tire grip and handling precision
- Reduced rider fatigue
| Spec | Details |
|---|---|
| Model | INTEGRA X30 |
| Size | 29" / 29er (ETRTO 622mm) |
| Internal / External Width | 30mm / 36mm |
| Rim Height | 22mm |
| Structure | Asymmetric (3.0 mm Offset) |
| Front Rim Weight | 235±15g |
| Rear Rim Weight | 270±15g |
| ERD | 591mm |
| Material | Toray T700 + T800 + T1100 |
| Tire Pressure Range | 25 ~ 32 psi |
| Max Tire Pressure | 35 psi / 2.77 bar |
| Recommended Tire Width | 2.0" – 2.75" |
| Max Rider Weight | 115kg (Standard Pairing) |
| Use | XC / XCO / XCM / XCC |
| Tubeless Ready | Yes |
| Spoke Configuration | With or without access holes (12mm nipples) |
6. Conclusion: INTEGRA I30X – More Than Just Lightweight
It integrates three core innovations:
- ✅ Optimized Fiber Continuity & Reinforced Spoke Interface
- ✅ Bowl-Shaped Spoke Seat Platform
- ✅ Multi-Layer Carbon Layup Optimization
Combined with front-rear weight differentiation, toughness, and low-profile compliance, the INTEGRA I30X delivers a smooth, stable, and high-performance riding experience even on the most demanding XC trails.
7. Testing Reports
Something exciting is coming soon!