Runwell - Stex Wrench

Compact. Reliable. Ready for Every Ride.

STEX is a portable hex wrench tool that combines four essential sizes—3, 4, 5, and 6 mm—into a sleek, precision-machined handle. Small enough to carry anywhere, it's the perfect companion for quick bike adjustments and roadside fixes.

Whether you're fine-tuning your saddle height, adjusting your handlebars, or checking bolts before a ride, STEX keeps the most commonly used hex sizes close at hand.

Road vibrations can gradually loosen even properly tightened bolts, making regular checks an important part of bike maintenance. With STEX in your pocket or saddle bag, you're always prepared.

Notes
*Fully insert the hex bit before applying torque to prevent damage to the bolt head.
*If the bit loosens over time, tighten the top set screw using a 2.5 mm hex wrench. For maximum retention, apply a small amount of threadlocker (e.g., LOCTITE®) to the set screw before tightening.

Material
Steel

Length
75mm

Weight
23g

Handcrafted in Japan

Manufacturer Information
Runwell
1691-5 Kanekoshinden
Sanjo, Niigata, 955-0814 Japan
0256-35-7460