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FIFTY-FIFTY was founded by 3 MTBers in 2012, who are specialized in machinery and industrial design.

We mainly design and manufacture mountain bike components.

Design products to enhance riders’ performance and win the favor of consumers by high quality,

high durability and good after-market service, which is the production power of FIFTY-FIFTY.

Feature

Strong and Durable: The 31.8mm stem is made of 6061-T6 aluminum alloy and CNC machined make the bike stem high-strength and light weight
+7 Degree Angle Design: The 31.8 stem angle is +7 degree so it can make you feel more control and get a comfortable riding position
Compatible with the bike handlebar diameter 31.8mm (1-1/4"), Steerer tube diameter: 28.6mm (1-1/8"), Length: 80mm, great for the most mountain bikes, road bike, E-Bike, Hybrid, E-MTB
Easy to Install: Simply insert the 31.8 bike stem into the fork bar and tighten the screws alternately to securely fasten the bar, come with installation instructions
Come with 3 Bike Headset Spacers: 2 pieces of 2mm, 1 piece of 5mm, they can make the stem fit perfectly for your bike.

Specification

FIFTY-FIFTY Mountain Bike Stem

Made of 6061-T6 aluminum alloy and 3D forged.

+7 Degree angle design gives you more control and feel comfort.

Easy to Install and come with installation instructions.

Compatible with MTB, Road Bike, E-Bike, Trail, All Mountain, Enduro, Downhill, Freeride.

Package Included: 1 x FIFTY-FIFTY Bike Stem, 3 x Spacers, 1 x Headset Top Cap.

1. Slide the stem onto the steer tube. Optional spacers may be added or removed to ensure compression gap is correct (4-6mm).

2. Install the headset top cap and compression bolt on top of the stem.

3. Line the stem up straight with the front tire, tighten Steer Tube Clamp Bolts to 5-7Nm.

4. Install Handle Bar Clamp and Bar Clamp Bolts, and tighten bolts to 5Nm.