Montague

Octagon Steerer Extender 1-1/8" Threadless: Long 4"

Montague Octagon quick release height adjustable steerer extenders.

• Long length adjusts up to 4 inches
• Clamps to top of steerer, original stem clamps to top of Octagon device
• Automatically maintains minimum insertion
• Must be installed by a professional bicycle mechanic
• Octagonal shape keeps steering engaged while raising and lowering the stem
• Due to variations in aluminum steerer tube wall thickness, the manufacturer specifies usage only with 1-1/8" threadless steel steerer tubes
• Fast, easy handlebar height adjustment without tools