Cycling / Bicycle
🚴 Bicycle Wheels, Saddle, Pedals & Accessories
Long thin wire 200-300mm, small hexagonal nipples with internal threading, hollow axles with cam mechanisms, thin-wall tubing for cages/rails, small cleat plates
What is Bicycle Wheels, Saddle, Pedals & Accessories?
🚴 Bicycle Wheels, Saddle, Pedals & Accessories represents a complete system of precision titanium components engineered for Cycling / Bicycle applications. Long thin wire 200-300mm, small hexagonal nipples with internal threading, hollow axles with cam mechanisms, thin-wall tubing for cages/rails, small cleat plates The system integrates 14 distinct component types manufactured through 3 specialized processes.
Key manufacturing processes for this system include CNC turning Swiss-type for accessories geometry, Thread rolling DIN 13-1 6g with SPC sampling, Vibratory deburring with SPC sampling, Go/No-Go ring gauging with SPC sampling, CNC turning Swiss-type for wheel hardware geometry, each selected and qualified to meet component-specific requirements.
Engineering & Design Principles
Material: Grade 9 (Ti-3Al-2.5V) is ideal for spokes — higher strength than CP-Ti, excellent cold drawability, 40% lighter than steel. Grade 5 for axles and pedal spindles.
Form: Wire drawing for spokes and saddle rails. Bar stock for axles and pedal spindles. Tube forming for bottle cages.
Standards & Material Specifications
Standards: ASTM B863 Grade 9 wire / ASTM B348 Grade 5 axles, 100% tensile tested spokes, anodized
Engineering Solution Blueprint
Bicycle Drivetrain & Drivetrain Hardware
Cycling · Consumer
1 Part Feature Analysis
Precision-machined thin-profile toothed rings (cogs/chainrings), small-diameter pins/shafts, threaded fasteners with rolled threads, hollow spindles with bearing interfaces
- ⚠️ Rotational inertia reduction
- ⚠️ Wear resistance against chain rollers
- ⚠️ Sweat/rainwater corrosion
- ⚠️ Thread galling in aluminum frames
- ⚠️ Fatigue under sprint torque 1500W+
2 Material Selection Rationale
Grade 5 Ti-6Al-4V — General alpha-beta alloy, high strength
Grade 5 (Ti-6Al-4V) provides ideal wear resistance, fatigue strength, and 40% weight saving vs steel for drivetrain components. Grade 9 for fasteners requiring cold heading.
3 Form Selection Rationale
Round Bar / Rod — for turning, fasteners
CNC machining from plate/bar for cogs and chainrings. Swiss-type turning for pins and spindles. Rolled thread forming for bolts ensures continuous grain flow for fatigue safety.
4 Manufacturing Process & Services
Core Processes:
Toll Processing Services:
Process Pitfalls:
- ⚠️ Chainring tooth profile must match chain roller diameter to +-0.05mm for silent shifting
- ⚠️ BB spindle taper requires +-0.01mm concentricity for bearing preload accuracy
5 Procurement Specifications
ASTM B348 Grade 5 / Grade 9, solution+aged (STA), 100% dimensional + MPI inspected
Manufacturing Process Flow
Press brake forming of titanium sheet uses CNC-controlled backgauges and variable-radius tooling to produce precision bends. Titanium's high springbac
CNC turning of titanium on multi-axis lathes produces cylindrical components with precision diameters and surface finishes. Live tooling enables milli
Press brake forming of titanium sheet uses CNC-controlled backgauges and variable-radius tooling to produce precision bends. Titanium's high springbac
Components in This System
| Component | Material |
|---|---|
| Titanium Fender Mounting Bolt | Grade 5 Ti-6Al-4V |
| Titanium Hub Freehub Body Spline | Grade 5 Ti-6Al-4V |
| Titanium Pedal Cleat Screw | Grade 5 Ti-6Al-4V |
| Titanium Pedal Spindle | Grade 5 Ti-6Al-4V |
| Titanium Pedal Traction Pin | Grade 5 Ti-6Al-4V |
| Titanium Saddle Clamp Washer | Grade 5 Ti-6Al-4V |
Frequently Asked Questions
What titanium grades are used in Bicycle Wheels, Saddle, Pedals & Accessories systems?
What manufacturing processes are used for Bicycle Wheels, Saddle, Pedals & Accessories?
What quality standards apply to Bicycle Wheels, Saddle, Pedals & Accessories components?
What industries use Bicycle Wheels, Saddle, Pedals & Accessories?
Can you provide DFM feedback for Bicycle Wheels, Saddle, Pedals & Accessories designs?
Engineering Trends
- ▸ Process: Wire drawing to precise diameter +-0.02mm
- ▸ Process: CNC swaging/j-bend forming of spoke ends
- ▸ Process: CNC turning of axle/spindle profiles
Related Manufacturing Capabilities
These specialized processes support Bicycle Wheels, Saddle, Pedals & Accessories component manufacturing.
One Metal. One Focus. Infinite Precision.
Founded in 2011 in Baoji's Titanium Valley, BOZE Metal is dedicated exclusively to titanium — from raw material to precision engineering. AS9100D, ISO 13485 & ISO 9001 certified with 500+ clients across Aerospace, Medical & Motorsport industries, we deliver end-to-end precision titanium CNC machining with full material traceability from source to component.
Boze CNC Ti is the dedicated titanium manufacturing center of Baoji Boze Metal Products Co., Ltd.