Cutting Service

"Ring of Death" (Lowering Cone Damage):

• Cutting without proper support causes splintering
• Internal damage where steerer meets crown
• Weakens critical structural junction
• Can lead to sudden fork failure

Delamination:

• Cutting techniques can separate carbon layers
• Internal damage not visible from outside
• Reduces strength dramatically
• May fail unexpectedly under load

Uneven Cuts:

• Creates cocked headset installation
• Uneven bearing preload
• Accelerated bearing wear
• Potential for headset loosening

Pre-Cutting Preparation

Know Your Position:

• Have preferred stem length and spacer stack determined
• Consider future position changes
• Bike fit helpful before cutting
• Once cut, you can't add length back

Stem Selection:

• Have appropriate stem ready
• Consider stem angle implications
• Ensure stem is compatible with fork
• Some stems require specific steerer engagement

Spacer Planning:

• Plan spacer stack below and above stem
• Consider minimum spacer requirements
• Account for top cap and headset
• Think about future position adjustments

Post-Cutting Considerations

Torque Specifications:

• Stem bolts: manufacturer-specific (typically 5-8Nm)
• Top cap: lower torque (typically 3-5Nm)
• Critical to use torque wrench on carbon
• Over-torquing can damage steerer

Expansion Plugs:

• Some carbon forks require specific expansion plugs
• Proper installation essential for safety
• Don't use star nuts on carbon steerers
• Follow manufacturer specifications

Regular Inspection:

• Check steerer area regularly for cracks or damage
• Monitor stem bolt tightness
• Watch for any creaking or unusual sounds
• Annual professional inspection recommended