Gettimore Single Speed Bike Freewheel Cog 16T 18T, CNC Aluminum Alloy Fixed Gear Conversion Kit with Spacers and Lockring for MTB, Secure Fit, Black(Black-16T)

• Complete Freewheel Set: Includes 1 x aluminum alloy cog (16T or 18T), precision-machined spacer rings, and a LONGLASTING lockring - everything needed for secure, aligned installation on standard freewheel hubs.
• Optimized Gear Ratio Options: Choose 16T for faster acceleration and higher top speed, or 18T for balanced pedaling efficiency - perfect for urban commuting, track training, or casual single-speed riding.
• Precision CNC Aluminum Construction: Lightweight yet strong aluminum alloy body delivers responsive performance and consistent engagement, with tight-tolerance machining to minimize and maximize drivetrain efficiency.
• Reduced Wobble Design: Engineered with a snug hub interface and integrated spacing system to limit lateral movement, enhancing power transfer and delivering smoother, more reliable coasting and pedaling.
• Multiple Color & Size Variants: Available in black, red, blue, and purple finishes; fits standard freewheel threading (34.55mm OD); measure YOUR HUB SPECIFICATIONS before ordering - DO NOT rely on Amazon's size chart.

Features: *Compatible with standard freewheel hubs for single- or fixed-gear bikes *Available in 16-tooth or 18-tooth options for different gear ratios *Made of CNC aluminum alloy for lightweight strength and durability *Includes spacer rings and lockring for secure installation and alignment *Tight fit design reduces wobble and improves power transfer Specifications: *Product Name: Single Bike Freewheel / Cog *Material: Aluminum alloy *Size: 34.55*78.8mm / 34.55*70.2mm *Tooth Count: 16T, 18T *Color Options: Black, Red, Blue, Purple *Type: Freewheel cog with spacers and lockring Package Content: 1 x Single Freewheel Set (cog, spacers, lockring)