A 104 BCD 5-bolt chainring can make your drivetrain quieter and keep the chain locked in better.
A 32T narrow-wide ring suits many 1x setups with smooth, reliable pedaling.
The right ring and bolts can also trim weight and improve shifting feel.
This guide covers the best options for serious riders in 2026.
| Boao 104 BCD 32T Narrow Wide Chainring |  | Best Overall | BCD: 104 mm | Material: T6 alloy | Fit Type: 1×7-1×12 drivetrain | VIEW LATEST PRICE | Read Our Analysis |
| YBEKI 7075-T651 Chainring Bolts Kit with Wrench |  | Best Bolt Kit | BCD: Bolt kit compatible; no BCD listed | Material: 7075-T651 aluminum alloy | Fit Type: Single or double chainring | VIEW LATEST PRICE | Read Our Analysis |
| RocRide Single Chainring Bolts in Aluminum or Steel. Pack of 5. |  | Lightweight Pick | BCD: Fits 4 or 5 bolts | Material: Steel or 7075-T6 aluminum | Fit Type: 4- or 5-bolt chainrings | VIEW LATEST PRICE | Read Our Analysis |
| CNC Steel Bicycle Chainring Bolts Set (5 PCS) |  | Heavy-Duty Option | BCD: M8×6.5 mm bolt set | Material: Steel alloy T25 | Fit Type: Double or single chainwheel | VIEW LATEST PRICE | Read Our Analysis |
| Round Oval Narrow Wide Chainring for Bikes |  | Best Versatility | BCD: 104 BCD | Material: 7075-T6 aluminum alloy | Fit Type: Single-speed only | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Boao 104 BCD 32T Narrow Wide Chainring
If you want a lightweight, no-fuss 1x upgrade for a bike with a 104 mm BCD crank, the Boao 104 BCD 32T Narrow Wide Chainring is a strong fit. You get a black, round T6 alloy ring with a 4 mm plate that’s built for road, MTB, BMX, and mixed use. It fits 1×7 through 1×12 drivetrains, helps hold the chain, cuts noise, and resists corrosion. The 32T size suits climbing and keeps weight low. You also get four bolts, so install’s simple. Be sure your crank uses 104 mm BCD before you buy.
- BCD:104 mm
- Material:T6 alloy
- Fit Type:1×7-1×12 drivetrain
- Quantity:1 chainring + 4 bolts
- Finish:Black
- Bike Use:Road/MTB/BMX
- Additional Feature:Narrow-wide tooth design
- Additional Feature:Anti-drop chain retention
- Additional Feature:4 mm thickness
YBEKI 7075-T651 Chainring Bolts Kit with Wrench
YBEKI’s 7075-T651 Chainring Bolts Kit with Wrench is a strong pick for riders who want a lightweight, high-strength upgrade that’s easy to install and built to resist corrosion. You get aerospace-grade 7075-T651 aluminum, CNC laser machining, and a heat-treated tool-steel wrench, so you can tighten confidently. The triple-layer anodized finish helps prevent wear and galvanic corrosion, while the anti-loosening threads stay secure. Choose 6.4mm bolts for double setups or 4.9mm for 1X/2X systems. Torque them to 12-15Nm, and you’re set.
- BCD:Bolt kit compatible; no BCD listed
- Material:7075-T651 aluminum alloy
- Fit Type:Single or double chainring
- Quantity:Bolt kit with wrench
- Finish:Triple-anodized colors
- Bike Use:Chainring installation
- Additional Feature:Includes tool wrench
- Additional Feature:Triple-layer anodizing
- Additional Feature:12-15Nm torque spec
RocRide Single Chainring Bolts in Aluminum or Steel. Pack of 5.
RocRide’s single chainring bolt set is a smart pick if you want a clean, secure setup for a 4- or 5-bolt chainring without extra bulk. You get a pack of five, so you can match most builds and keep spares handy. Choose steel for a rugged, classic look, or pick anodized 7075-T6 aluminum for a lighter, color-matched finish in black, blue, or red. Use the standard chainring bolt wrench, and keep to 12 Nm on steel. Just note they’re too short for bash guards or other accessories.
- BCD:Fits 4 or 5 bolts
- Material:Steel or 7075-T6 aluminum
- Fit Type:4- or 5-bolt chainrings
- Quantity:Pack of 5
- Finish:Anodized colors
- Bike Use:Bike chainring hardware
- Additional Feature:Pack of 5
- Additional Feature:2-piece design
- Additional Feature:7 mm thread depth
CNC Steel Bicycle Chainring Bolts Set (5 PCS)
For riders who want a secure, long-lasting chainring fix, this CNC 5-piece steel bolt and nut set is a smart choice. You get a stiff steel-alloy T25 build that holds up well under hard pedaling and regular abuse. The M8 x 6.5 mm bolt-and-nut sizing fits double chainrings cleanly, and it works with Shimano and SRAM setups. You can use it on MTB, road, or BMX bikes. The advanced electrophoretic coating adds extra protection and vivid color options, including black, blue, red, orange, and colorful finishes, so your build looks sharp too.
- BCD:M8×6.5 mm bolt set
- Material:Steel alloy T25
- Fit Type:Double or single chainwheel
- Quantity:5-piece set
- Finish:Electrophoretic coating
- Bike Use:MTB/Road/BMX
- Additional Feature:T25 steel alloy
- Additional Feature:Electrophoretic coating finish
- Additional Feature:M8×6.5 mm size
Round Oval Narrow Wide Chainring for Bikes
If you want a lightweight, durable chainring that improves chain retention, the MSRECK Round/Oval Narrow-Wide Chainring is a strong fit for single-speed riders who use Shimano, SRAM, or FSA cranks. You can choose 104 BCD in round or oval shapes, with sizes from 32T to 52T and black, red, or blue finishes. Its 7075-T6 aluminum build, CNC machining, and anodized coating help it last while staying light. The narrow-wide teeth reduce friction and noise, and installation stays simple. Please note: it won’t work with multi-speed drivetrains or 7-12-speed chains.
- BCD:104 BCD
- Material:7075-T6 aluminum alloy
- Fit Type:Single-speed only
- Quantity:1 chainring
- Finish:Anodic oxidation
- Bike Use:Road/MTB/BMX
- Additional Feature:Round or oval
- Additional Feature:52T max size
- Additional Feature:Single-speed only
Factors to Consider When Choosing 5 Bolt Bike Chainrings
When you choose 5 bolt bike chainrings, you’ll want to check bolt pattern compatibility initially so the ring fits your crankset. Then compare chainring size options, drivetrain compatibility, material and weight, and the tooth profile design to match how you ride. The right mix helps you get smoother shifting, better efficiency, and a setup that lasts.
Bolt Pattern Compatibility
Bolt pattern compatibility is the initial thing you should check before buying a 5-bolt bike chainring. You need the chainring’s bolt circle diameter, or BCD, to match your crank exactly, because a 104 mm ring only fits a 104 mm 5-bolt interface. Count the bolt holes on both parts too; a five-bolt chainring won’t mount to a crank with fewer or more points. Before you buy, measure bolt length and thread depth, since 5-bolt setups can call for 4.9 mm, 6.4 mm, or 6.5 mm hardware. Also confirm whether your system uses a two-piece bolt-and-nut design or another style, so you can install it with the right wrench and avoid a mismatch that stops installation.
Chainring Size Options
Chainring size is usually measured in teeth, and for 5-bolt bike chainrings you’ll commonly see 32T, 34T, 36T, 38T, and larger options from 40T to 52T depending on the bike and riding style. Smaller sizes, like 32T to 38T, make climbing easier and help you spin smoothly on steep routes. Larger sizes give you harder gearing for faster riding and stronger top-end speed. As tooth count rises, diameter also increases: a 32T ring is about 135 mm, 34T about 144 mm, 36T about 152 mm, and 38T about 160 mm. Choose the size that fits your terrain, cadence, and power goals, and confirm it works with your crank and intended gear ratio before buying.
Drivetrain Compatibility
Before you buy a 5-bolt bike chainring, make sure it matches your drivetrain speed and setup, since some rings work with 1x systems using 7/8/9/10/11/12-speed chains while others are meant for single-speed use only. You should also confirm the bolt pattern and BCD match your crank, because a 104 mm ring won’t fit every setup. Check whether your drivetrain uses a single, double, or triple ring arrangement, since some options are built for 1x/2x systems and others suit double-chainring cranks only. Chain compatibility matters too: narrow-wide designs can work with multi-speed chains, but not every ring does. Unless you’re unsure, measure your existing hardware. Bolt length, thread depth, and total thickness can change fit and function, so verify them before you order.
Material And Weight
Once you’ve confirmed the right 5-bolt fit and drivetrain setup, material and weight become the next big choice. Should you want the lightest setup, pick aluminum chainrings, especially 7075-T6 or similar alloys. They can weigh around 61 g for a 32T ring, so you’ll trim grams without sacrificing enough strength for most riding. Should you value extra stiffness, a thicker 4 mm plate can feel more solid and hold up better over time, though it adds a little weight. Don’t overlook bolts either: steel bolts are tougher but heavier, while aluminum bolts can cut weight to about 1.5 g each. Aerospace-grade 7075-T651 aluminum bolt kits give you a strong, corrosion-resistant middle ground, so choose light aluminum for performance and steel where durability matters most.
Tooth Profile Design
One of the biggest tooth-profile choices you’ll make is whether to go narrow-wide or standard. Whenever you ride rough terrain or want stronger chain retention, pick narrow-wide: its alternating narrow and wide teeth hold the chain more securely and reduce drops without a front derailleur. Match the profile to your setup too; a 104 BCD ring perhaps come in 32T, 34T, 36T, or 38T, and each count affects gearing and chain length. Look for tooth shapes with positive and negative profiles, since they can cut friction and noise while helping the ring last longer. Also check thickness and spacing: some designs use about 4 mm plate thickness with roughly 1.9 mm and 3.7 mm narrow/wide dimensions.
Bolt Length And Fit
Bolt length has to match the chainring stack and hole depth, so check whether your 5-bolt setup needs bolts sized for roughly 5–9 mm of thread engagement. You should measure your current bolts with calipers before you order, since similar-looking fasteners can vary a lot. A single-ring setup may use a 4.9 mm bolt, while a double-ring application may need about 6.4 mm. Also verify thread depth and external width; many chainring bolts offer around 7 mm of thread depth and about 10 mm of external width. Tighten them to the recommended 12–15 Nm so you don’t strip threads or leave them loose. Should you run a bash guard or other spacers, make sure the bolt still reaches through the full stack.
Corrosion Resistance
Whenever you’re choosing 5-bolt chainrings, corrosion resistance matters just as much as fit. You’ll get better long-term performance provided you pick chainrings and bolts with anodizing, electrophoretic coating, or anti-galvanic protection. Those finishes help block rust and oxidation before they start. Provided you ride in wet or salty conditions, aluminum alloys like 7075-T651 or 7075-T6 can hold up well once they’ve been properly treated, especially with triple-layer anodizing or anodic oxidation. Steel bolts can still work great, but they need surface coatings more than aluminum does because bare steel rusts fast. A smooth, fine-polished surface around 5 microns can also improve thread engagement and cut moisture-related wear. Choose hardware that resists loosening and corrosion together, so your setup stays secure and reliable longer.
Frequently Asked Questions
What Chainring Size Suits My Riding Style Best?
Choose a smaller chainring if your routes include steep climbs, you like a lighter pedal feel, or you ride across varied terrain; choose a larger chainring if you spend more time on flat roads, race at higher speeds, and prefer harder gearing for powerful efforts.
How Often Should I Replace Bike Chainring Bolts?
Inspect chainring bolts every few rides, and replace them if the heads are rounded, corroded, or the bolts will not stay tight; if they are still in good condition, clean them and reuse them.
Can I Mix Aluminum and Steel Chainring Bolts?
Yes, you can mix aluminum and steel chainring bolts, but doing so can lead to uneven clamping, faster wear, corrosion, and loosening. For the best long term reliability, use matching bolt materials when possible.
Are Oval Chainrings Harder to Install Than Round Ones?
Not really. Oval chainrings are not harder to install, but you do need to line up the timing marks carefully, much like setting a precise gear. You usually mount them the same way as round chainrings, then adjust the position for smoother pedaling.
Does Chainring Tooth Count Affect Climbing Performance?
Yes. A smaller chainring makes pedaling on climbs easier and lets you maintain a quicker cadence. A larger chainring increases resistance on hills but supports higher speeds on flat ground. Fitness level, terrain, and preferred cadence also influence the best gearing choice.
