Sinz 110 BCD 5-Bolt BMX Chainring - Blue

Product Overview

The Sinz 110 BCD Chainring is a lightweight aluminum chainring designed for Sinz Square Taper cranks and other 110mm BCD 5-bolt setups. Available in tooth counts from 36T to 46T and multiple anodized color options, this 3mm thick chainring allows easy gear ratio adjustments for young racers and budget-conscious families. Built from 6000-series alloy for durability at weights ranging from 1.2 to 2.6 ounces depending on size.

Key Features

• 110mm BCD 5-bolt pattern – Designed specifically for Sinz Square Taper cranks and compatible with other 110 BCD 5-bolt spider systems
• Wide tooth count range (36T–46T) – Multiple sizes allow parents and riders to fine-tune gear ratios as rider strength develops or track demands change
• Lightweight 6000-series alloy – Aluminum construction keeps weight low (1.2 oz for 36T, 2.6 oz for 44T) without sacrificing durability for junior and novice racing
• 3mm thickness – Standard chainring profile works with 3/32" chains commonly used on BMX race bikes
• Blue anodized finish – Color-matched hardware adds style while protecting aluminum from corrosion and wear
• Budget-friendly – Affordable pricing allows frequent gear ratio changes without significant investment
• Multiple color options – Available in black, silver, red, and blue anodized finishes to match bike builds

Key Features (continued)

Technical Specifications

• Material: 6000-series aluminum alloy
• BCD (Bolt Circle Diameter): 110mm
• Bolt pattern: 5-bolt
• Tooth count options: 36T, 38T, 40T, 42T, 44T, 46T (verify available sizes)
• Chainring thickness: 3mm
• Chain compatibility: 3/32" (standard BMX single-speed chain)
• Weight range: 1.2 oz (36T) to 2.6 oz (44T)
• Color: Blue anodized (also available in black, silver, red)
• Recommended use: BMX racing, junior/novice classes

Compatibility and Ideal Use Cases

This chainring fits Sinz Square Taper cranks and any other crank spider with a 110mm BCD 5-bolt pattern. It will NOT fit cranks with different BCD measurements (such as 104mm, 130mm, or direct-mount systems)—measure your crank's BCD or verify specifications before ordering. Works with standard 3/32" BMX chains; will not accommodate wider 1/8" single-speed chains used on some cruiser or track bikes. Ideal for young BMX racers in novice, intermediate, and expert classes where gear ratio adjustments help match rider development and track profiles. The wide tooth count range (36T–46T) covers most youth racing scenarios—smaller gears (36T–40T) suit younger or less experienced riders, while larger gears (42T–46T) work for stronger riders or tracks requiring higher top speeds. The affordable price point makes it practical to stock multiple sizes for experimenting with ratios or swapping between technical and high-speed tracks. Requires standard 5mm chainring bolts (sold separately unless included with crank).