Check the listing for details. 3-Bolt DM Boost Chainring 32T Narrow-Wide Aluminum, T-Type, Red. Color: Red, Condition: New. Listed at 75.31 USD. Built for riders who expect more from every climb, descent, and long-haul ride, the Wheels Manufacturing MTB 3-Bolt Direct Mount Chainrings deliver the perfect balance of performance, durability, and precision. The T-Type compatible Narrow-Wide chainrings provide improved chain engagement, cleaner shifting, and confidence under power. CNC-machined from premium 7075 aluminum in Colorado, these chainrings are designed to keep your 9, 10, 11 and 12-speed drivetrain running smooth, quiet, and reliable on any terrain (NOT compatible with Hyperglide+ or Campagnolo 13-speed chains). Each ring is offered in seven anodized colors so riders can dial in their perfect look while trusting the long-term durability Wheels Manufacturing is known for.Perfect for riders who demand reliability and.