Salsa Size-O-Matic adjustable threadless stem in black aluminum for bike fitting.

Designed for 1 1/8 in (28.6 mm) threadless steerers with a 31.8 mm handlebar clamp diameter.

Sliding extension and hinged front section let you test different reaches and bar angles during a fit session.

Top is printed with 'DO NOT RIDE' and 'FOR FITTING PURPOSES ONLY'.

Printed length scale markings: 60, 70, 80, 90, 100, 110, 120, 130, 140, 150 mm.

Scale weight display shows 935 g.

Listing is for the stem only; any measuring tools or posts shown are for reference and not included.