Praxis Works

DH-9 Alloy Downhill Crank Arms

Praxis Works DH-9 Alloy Downhill Crank Arms are built for gravity riders who prioritize durability and reliable power transfer when lines get rough. A solid forged arm design paired with M30 aluminum spindle (30mm drive-side / 28mm non-drive-side) delivers a stiff, confidence-inspiring platform for downhill and bike-park abuse, while keeping service straightforward with a 3-bolt direct mount chainring interface.

Dialed details for DH setups

• Gravity-focused forged construction - Reinforced alloy arms built to handle high-impact riding and hard landings
• M30 spindle design (30/28mm) - Stiff, oversized aluminum spindle for consistent power transfer under heavy loads
• 3-bolt direct mount interface - Clean chainring mounting for quick ring changes and secure fit
• Chainline tuning on DH9-73 - Use a 0mm offset ring for 55mm chainline or a 3mm offset ring for 52mm chainline
• Bottom bracket sold separately - Compatible Praxis M30 BB options: PX-9040 (English 68/73mm), PX-9012 (BB30/PF30), PX-9013 (BB92)
• 650g (arms/spindle only) - Listed weight without bottom bracket or chainring