Chainrings & Cogs

Made in the US from 6061-T6 aluminum alloy, Box Two™ Chainrings are round and true. They fit 104 BCD four-bolt cranks and are available in black anodized with laser-etched graphics from 38 to 46 teeth.

Custom design 4-bolt decimal chainring 1/2x3/32 alloy 7075-T6 5.0mm thick, CNC made, CNC DANGERBOY logo, CNC teeth after anodized in Black, Blue, Gold, Purple, Red and Silver.

Custom design 4-bolt decimal chainring 1/2x3/32 alloy 7075-T6 5.0mm thick, CNC made, CNC DANGERBOY logo, CNC teeth after anodized in Black, Blue, Gold, Purple, Red and Silver. 

CNC machined DB Chainrings are stiff and light. 3mm thickness option. Six Anodized colors options.  7075 Aluminum Chainring bolts + allen key included. Material: 7075-T6 Aluminum Process: CNC Machined Finish: Anodized with machine engraved accents  Compatibility: • BCD: 4 Bolt - 104mm • Chain: 3/32” Size:...

Dangerboy chainring. 5mm thickness option.  CNC machined to be stiff and light. Two Anodized colors options; Silver or Stealth Black 7075-T6 Aluminum Chainring bolts + allen key included. Material: 7075-T6 Aluminum Process: CNC Machined Finish: Anodized with machine engraved accents  Compatibility: • BCD: 4 Bolt - 104mm...

DB Offset Reversible Cog made of 7075-T6. The Cog has a built in spacer that can be installed on either side to minimize the use of spacers. Custom design 1/2x3/32 5.0mm thick, CNC made, fit Shimano driver available in Black, Blue, Gold, Red, Purple and...

Specially developed for BMX Racing, the DB cogs are made of heat-treated stainless steel for better durability and strength. DB Single-Speed Chromoly Cogs are CNC-machined designed to fit Shimano compatible cassette hubs and has a 5mm wide inner base, giving a more solid interface...