Overview

The Wolf Tooth Components 31.8mm Purple Seatpost Clamp (often referred to as Ultraviolet or Classic Purple) is a high-grade aluminum bike collar designed to secure your seatpost with style, thanks to its striking anodized finish. CNC-machined in Minneapolis, Minnesota, this clamp ensures uniform torque without causing frame warping or hardware binding.

Key Technical Specifications

• Clamp Diameter: 31.8mm (Designed for bike frames with a 27.2mm seatpost. Always measure your seat tube's external diameter to confirm compatibility.)
• Material: Aerospace-grade 6061-T6 aluminum with a vibrant purple anodized finish.
• Hardware: M5 stainless steel custom bolt featuring a self-aligning spherical washer and cylindrical anchor barrel.
• Weight:
  • 19 grams for the bolt-on variant.
  • 35 grams for the quick-release variant.
• Installation Specs: Requires a 4mm hex key with a maximum torque rating of 6 Nm.
• Clamp Height: Ranges between 11mm and 13.5mm, depending on the generation and version.

Available Configurations

Bolt-On Version

• Low-profile design: Perfect for mountain, gravel, or road bikes where saddle height adjustments are infrequent.
• Self-aligning bolt system: Protects threads and ensures equal pressure across the seat tube.

Quick-Release Version

• Ergonomic, low-profile lever: Equipped with a specialized bronze bushing for smooth, tool-free clamping.
• Ideal for bikes without dropper posts: Enables easy manual adjustment of saddle height for climbing or descending.

Ordering & Fitment Details

• Frame Tolerances: Accommodates minor manufacturing or paint deviations up to ±0.5mm.
• Material Compatibility: Approved for use with carbon, steel, aluminum, and titanium frames.
• Incompatibilities: Not compatible with carbon fiber frames from Ibis.

Whether you're tackling rugged trails or cruising on the road, this lightweight and durable seatpost clamp delivers both performance and aesthetic appeal.