Speedline Spinners | EB30 ( BSA 68mm Shell ) Sealed Bearing Bottom Bracket
$ 79.95
Upgrade your drivetrain efficiency with the Speedline EB30 Outboard Bottom Bracket. Manufactured for Supercross by FIRST Components, this outboard setup is precision-engineered to pair perfectly with 30mm spindles, including the Supercross Spinners and Supercross Elite Carbon Cranks. CNC-machined from 6061-T6 aluminum and finished in sleek anodized black, it offers maximum durability without unnecessary weight.
Inside, ultra-smooth SUJ2 High-Speed Steel sealed bearings deliver effortless spin and long-lasting performance against race-day grit. Designed for standard threaded BSA 68mm bottom bracket shells, it’s the ultimate foundation for stiff, responsive pedaling power.
Key Features & Specifications
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Compatibility: BSA 68mm threaded BB shells
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Spindle Size: 30mm (Fits Supercross Spinners & Supercross Elite Carbon Cranks)
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Bearing Type: Premium SUJ2 High-Speed Steel sealed bearings (6806 $30\times42\times7\text{mm}$)
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Cup Material: Anodized Black 6061-T6 CNC-machined alloy cups
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Thread Specs: BC 1.37" x 24T
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Adapter Width: 11.2mm
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Weight: 99g
DOES NOT INCLUDE THE TOOL. TOOL COMES STOCK WITH THE SPEEDLINE SPINNER CRANKS
Race calendar
Never miss a USABMX national
Add the 2026 USABMX national race schedule to your calendar with one click. Built by Supercross BMX so racers, parents, and fans can keep every national weekend in one place.
Dates are based on the official USABMX national schedule and may be updated if changes are announced. This calendar is a fan/racer convenience tool from Supercross BMX and is not an official USABMX calendar.