S&M Chain Saw Sprocket (30,33,36,39,42,44t) 6 Color Options Including Polished BMX Chainrings

S&M Chain Saw Sprocket (30, 33, 36, 39, 42, 44T)

This CNC-machined aluminum sprocket is available in six tooth counts (30T through 44T) to accommodate different gear ratios. Features universal 3/32" teeth compatible with all BMX chains and a 15/16" center bore with included adapters for 19mm, 22mm, and 24mm spindles. Made in the USA and available in six color options including polished.

Key Features

• CNC-machined 6061 aluminum – Precision machining ensures accurate tooth profiles and tight tolerances while 6061 alloy provides strength-to-weight advantage over steel sprockets
• Universal 3/32" tooth width – Compatible with all standard BMX chains (1/8" and 3/32") without requiring specific chain matching
• 15/16" center bore with included adapters – Fits 19mm, 22mm, and 24mm crank spindles using provided adapter rings, eliminating need to purchase separate hardware
• Six tooth count options – Choose from 30T, 33T, 36T, 39T, 42T, or 44T to dial in desired gear ratio for acceleration vs. top speed balance
• Made in USA – Domestic CNC machining with quality control throughout production

Technical Specifications

• Material: CNC-machined 6061 aluminum
• Tooth width: 3/32" (universal BMX chain compatible)
• Center bore: 15/16"
• Spindle compatibility: 19mm, 22mm, 24mm (with included adapters)
• Available tooth counts: 30T, 33T, 36T, 39T, 42T, 44T
• Included hardware: 19mm and 22mm spindle adapters
• Color options: 6 (including polished)
• Made in: USA

Compatibility and Ideal Use Cases

Works with all three-piece cranks using 19mm, 22mm, or 24mm spindles and any standard BMX chain. Smaller tooth counts (30T-33T) provide quicker acceleration and easier manual balance for technical street riding, while larger counts (39T-44T) offer higher top speeds for racing, dirt jumping, or riders who prioritize speed over quick response. Mid-range options (36T) balance acceleration and top end for all-around park and street use. The universal bore and included adapters make this sprocket compatible across different cranksets without additional purchases.