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Speedline Parts | 31.8 Elite BMX Pro Racing Stem

The Speedline Elite 31.8 Pro BMX Race Stem is the Big Brother to our Speedline Slant Stem. 

The slant load design makes for easier loading and adjustment. It combines the best of features of a front load and top load stem. The 31.8 beefs up the clamping area to increase front-end stiffness and ensure your bars stay put!

Available in 4,  31.8 Sizes - 42mm, 48mm, 54mm. and 60mm

Available in Black Anodized, or Polished Aluminum.

1 1/8" ( 28.6mm ) Clamp for the fork and 31.8 Bar Clamp for the Oversize Carbon and Aluminum Pro Bars.

CNC'd from 6061 T-6 Billet Aluminum.

Stainless Steel Hardware ( Optional Titanium Stem Bolts Available here

9.1 ounces ( 254 grams ) in the 54mm length.

Provides a 1/4" rise to overall bar height.

Still can’t decide on the right stem? Click here to read our blog about choosing the right stem!

Customer Reviews

Based on 4 reviews
Terry Solimine
Great stem

Thick body with large bolts. Should be no flex. The short reach is nice too.

Steve Miracle
SX Carbon bars and 31.8 stem

More well made products for SX as expected.
I was skeptical on carbon bars but they rock and don’t flex.
Thank you

Ronnie Bennett
Speedline hardparts

Love the company and all the products!!🤘🏼🏁


I love all Speedline products, great company!!