HOTCHECK S-Grade Titanium SRAM UDH Derailleur Hanger & Pivot Bolt Kit RED FORCE D1/E1

The Complete Titanium UDH Upgrade!

Three precision-engineered titanium components. One complete assembly.

The HOTCHECK S-Grade Titanium SRAM UDH Hanger & Pivot Bolt Kit brings together everything required for a coordinated titanium upgrade of the derailleur hanger assembly.

Not simply a replacement hanger, but a complete system comprising HOTCHECK's intricately CNC-machined titanium UDH derailleur hanger, matching titanium UDH fixing bolt and washer, and a dedicated titanium derailleur pivot bolt for compatible SRAM RED and FORCE D1/E1 rear derailleurs.

The hanger. The mounting hardware. The pivot bolt. All included.

Manufactured from HOTCHECK S-Grade Titanium Alloy, with material originating from BAOTI Group and sourced through specialist suppliers in Baoji, China, the assembly reflects an uncompromising approach to materials, design and manufacturing.

The hanger's distinctive sculpted geometry is produced using precision 4-axis CNC machining, creating an intricate profile where mechanical function and visual refinement are considered together.

With manufacturer-stated tolerances as tight as ±0.01 mm for assembly-critical features, HOTCHECK's attention to dimensional accuracy extends well beyond the visible surfaces.

At a combined weight of just 35.75 g, the complete three-part kit brings together considered engineering, premium titanium construction and exceptional attention to detail.

For riders who believe that every component, however small, deserves the same level of consideration as the rest of their build.

Performance is the baseline. Aesthetics is the obsession.

Three Components. One Complete Kit.

Every element of the HOTCHECK SRAM UDH Kit has been designed to complement the others, creating a complete titanium assembly with consistent materials and finishing.

01 — S-Grade Titanium UDH Derailleur Hanger

The centrepiece of the assembly. Precision-machined using 4-axis CNC technology, featuring HOTCHECK's distinctive sculpted geometry and refined detailing.

Weight: 23.1 g

02 — Titanium UDH Fixing Bolt & Washer

A matching titanium fixing assembly, engineered around original SRAM UDH specifications to secure the hanger to a compatible frame.

Combined weight: 9.9 g

03 — Titanium SRAM Derailleur Pivot Bolt

The finishing detail that completes the assembly. A dedicated titanium pivot bolt compatible with SRAM RED and FORCE D1/E1 rear derailleurs.

Weight: 2.75 g

Complete Kit Weight: 35.75 g

Engineering Highlights

• Complete Three-Part Titanium Assembly — Includes the UDH derailleur hanger, fixing bolt and washer, and SRAM derailleur pivot bolt.

• S-Grade Titanium Alloy — High-strength titanium sourced through specialist suppliers in Baoji, China, with material originating from BAOTI Group.

• Precision 4-Axis CNC Machining — Multi-axis manufacturing produces the hanger's intricate geometry, sculpted surfaces and distinctive detailing.

• Exacting Manufacturing Standards — HOTCHECK specifies tolerances as tight as ±0.01 mm for assembly-critical features, with careful management of cumulative tolerances.

• SRAM RED & FORCE Compatibility — Supplied with a titanium derailleur pivot bolt designed for SRAM RED and FORCE D1/E1 rear derailleurs.

• Considered Design — Engineering informed by real-world cycling, installation and mechanical experience.

• Refined Titanium Finish — A cohesive, precision-machined aesthetic across all three components.

Technical Specifications

Weights are manufacturer-stated and may vary slightly between individual components.

Compatibility & Fitment

Compatible Derailleur Pivot Bolt

The supplied titanium derailleur pivot bolt is confirmed by HOTCHECK as compatible with:

• SRAM RED AXS D1

• SRAM RED AXS E1

• SRAM FORCE AXS D1/D2

• SRAM FORCE AXS E1

Not Compatible With

• SRAM XPLR rear derailleurs — the included pivot bolt is not compatible.

Compatibility of the supplied pivot bolt with other SRAM derailleur models has not been confirmed.

Frame & Hanger Requirements

The UDH hanger assembly is designed for compatible frames using the SRAM Universal Derailleur Hanger (UDH) mounting standard.

Please verify your frame's UDH mounting arrangement, rear thru-axle specification and derailleur compatibility before ordering.

What's Included

• 1 × HOTCHECK S-Grade Titanium SRAM UDH Derailleur Hanger

• 1 × HOTCHECK Titanium UDH Fixing Bolt

• 1 × HOTCHECK Titanium UDH Washer

• 1 × HOTCHECK Titanium SRAM RED / FORCE D1 & E1 Pivot Bolt

All components are included in the complete kit.

Engineering Without Compromise.

From the material beneath the surface to the precision of the final machined detail, HOTCHECK approaches every component with the same philosophy: engineering excellence should never be separated from exceptional design.

HOTCHECK — Titanium Modding Masters.