Crankbrothers | Gem S | Midnight Edition

Compact inflation with two modes for the road and the trail.

The Crankbrothers Gem S is a lightweight mini pump designed for road, trekking, and mountain bike riders who want versatile inflation in a compact package. Finished in black as part of the Midnight Edition, it combines a dual-mode inflation system with a universal valve head for everyday riding and trailside repairs.

Its high-pressure/high-volume switch lets you select the appropriate mode for your tire, while the 6061-T6 aluminum alloy construction provides a durable pump body. At just 176 mm long and 128 g, the Gem S is easy to carry in your riding kit without taking up much space.

Key Features

• High-Pressure / High-Volume Modes
  Switch between inflation modes to suit different tire types and inflation needs.

• 6061-T6 Aluminum Alloy
  Durable alloy construction in a compact design.

• Universal Valve Head
  Compatible with both Presta and Schrader valves.

• Compact and Lightweight
  Measures 176 mm long and weighs 128 g for convenient portability.

• Midnight Edition Finish
  Features a black finish for a clean, understated look.

• Gauge-Free Design
  Keeps the pump simple and compact without an integrated pressure gauge.

Technical Specifications

• Category: Mini Pump

• Discipline: Road / Gravel / MTB / Trekking

• Material: 6061-T6 Aluminum Alloy

• Inflation Modes: High Volume / High Pressure

• Maximum Pressure: 116 psi / 8 bar

• Valve Compatibility: Presta / Schrader

• Length: 176 mm

• Weight: 128 g

• Pressure Gauge: Not included

• Finish: Black, Midnight Edition

Be ready for the unexpected with compact inflation for every ride.