Seatpost Gauge
Need to know which seatpost your bike uses? We’ve got you covered. The Wheels Manufacturing Seatpost Gauge is the quick, accurate tool for determining the inside diameter of your bike’s seat tube, so you can identify the correct seatpost size without guesswork.
Made from durable acrylic, this gauge is built to last and sized just right for shop benches, toolboxes, and trailhead tool kits. Whether you’re a professional mechanic, shop tech, or DIY rider, it’s a simple solution that saves time and ensures proper fit. Covers 24 common seatpost sizes, from 25mm up to 34.9mm, including all the in-between sizes you’re likely to encounter.
Just insert the gauge into the seat tube until it fits snugly, no batteries, no guesswork.
Features:
Precision-cut acrylic gauge for long-lasting use
Measures seat tube inside diameters from 25mm to 34.9mm
Includes common sizes: 25.0, 25.4, 25.6, 25.8, 26.0, 26.2, 26.4, 26.8, 27.0, 27.2, 27.4, 28.2, 28.6, 28.8, 29.2, 29.4, 30.0, 30.2, 30.4, 30.8, 30.9, 31.4, 31.6, 31.8, 34.9
Compact, lightweight, and easy to use.
an affordable must-have for accurate seatpost sizing
Perfect for any shop, mechanic, or rider who wants to get the fit right the first time.
Measure smart. Ride right.
Pete
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.