Brother Cycles Big Bro Thru Axle Dropouts

These sliding dropout plates are compatible with all Big Bro models, including the 2021 (Boost) version. They allow a 12x142mm or 12x148mm ‘Maxle’ spec thru axle to be fitted rather than quick-release.

Axle specification:

• Maxle 12x142mm or 12x148mm
• Thread pitch M12x1.75
• Length 174mm or 180mm
• Includes mounting bolts and washers