Cycling component engineered for single-ring drivetrains, promising secure chain retention and lightweight performance in rough terrain, introduced as Boao Chainring. Confident riders enjoy quieter, neater runs and a cleaner frame finish. Will the size and 104 BCD fit your crank and riding style?
⚡ At a Glance
- • Chain Retention: Narrow-wide tooth profile with alternating positive and negative teeth reduces chain drops on rough ground
- • Best for: XC riders and AM/FR/DH cyclists running single-chainring 104 BCD setups
- • Not ideal for: Cranks that do not use a 104 mm BCD or multi-chainring drivetrains
Available in 32T, 34T, 36T and 38T sizes for 104 BCD cranks. T6 alloy construction keeps weight down while remaining sturdy.
Secure Chain Retention - With narrow-wide tooth design
Alternating narrow and wide teeth match inner and outer chain links so the chain nests on the ring rather than slipping. Positive and negative tooth shapes add lateral stability to keep the chain seated over rough sections.
Fewer dropped chains and less drivetrain noise when riding technical trails. Frame scuffs from chain rub are minimised and wear life is extended.
Lightweight Riding - Thanks to T6 alloy construction
T6 heat-treated aluminium alloy offers a high strength-to-weight ratio, using less material without compromising structural integrity. The description notes a potential overall weight reduction of about 1 kg compared with heavier setups.
Quicker acceleration and easier climbing due to lower rotating mass. Riders who swap from heavier chainrings will notice improved responsiveness.
Straightforward Fit and Finish - With 104 BCD sizing and corrosion-resistant surface
Standard 104 mm bolt circle diameter matches most single-chainring cranks, with precise diameters listed for each tooth count. Surface treatment is described as smooth, bright and resistant to fading and corrosion.
Easy installation on compatible cranks and an attractive, low-maintenance finish that keeps the bike looking tidy. Cleaning and upkeep are simple after muddy rides.
✨ The 4 Key Reasons for Boao Chainring
- T6 Alloy Construction - Saves weight for quicker climbs and responsive handling
- 104 BCD Compatibility - Fits most 104 BCD cranks for straightforward upgrades
- Corrosion-Resistant Finish - Keeps rings looking fresh and reduces long-term corrosion
- Includes 4 Sprocket Bolts - Complete fitting kit ready for immediate installation on bikes
📋 Technical Details at a Glance
- Material: T6 aluminium alloy
- BCD: 104 mm
- Tooth counts: 32T, 34T, 36T, 38T
- Diameter: 32T/135 mm, 34T/144 mm, 36T/152 mm, 38T/160 mm
- Tooth profile: Narrow-wide with positive and negative teeth
❓ Frequently Asked Questions
Q: Is this chainring compatible with my crank?
A: Suitable for most 104 mm BCD cranks, but check crank BCD and desired tooth count before fitting.
Q: Are mounting bolts included?
A: Yes. Supplied with four sprocket bolts for fitting to a 104 BCD crank.
Q: What sizes are available and what are their diameters?
A: Available in 32T, 34T, 36T and 38T with diameters of 135 mm, 144 mm, 152 mm and 160 mm respectively.
🏆 Our Verdict
Ideal for riders who prefer single-ring drivetrains and demand reliable chain retention on technical terrain. The narrow-wide tooth profile combined with T6 alloy construction delivers a balance of low weight, durability and neat appearance. Strong build quality and wide 104 BCD compatibility make for long-term value and straightforward upgrades.
