Choosing the right square taper crankset can improve chain retention, reduce weight, and boost pedaling efficiency on mountain bikes. This guide highlights five well-regarded options, each with 104 BCD compatibility and 170mm arms. From rugged aluminum designs to narrow-wide chainring configurations, these cranksets cover single-speed builds and simple upgrades for MTB enthusiasts. Below you’ll find quick product highlights, fit notes, and practical buying considerations to help you decide.
| Product | Brand | BCD / Chainring Options |
|---|---|---|
| Square Taper Crankset MTB, 170mm | PETCHOR Store | 104BCD; 32T/34T/36T/38T; 170mm |
| Cyclon Single Speed Square Taper Crankset | Cyclon Store | 104BCD; 32T/34T/36T/38T/40T/42T; 170mm |
| BUCKLOS 170mm Square Taper Crankset | BUCKLOS Store | 104BCD; 32/34/36/38/40/42T; Round/Oval |
| MTB Square Taper Crankset (170mm) | N/A | 104BCD; 32T-42T; 170mm |
| Mountain Bike Crankset with 170mm Arm | N/A | 104BCD; 32T-42T; 170mm |
Note: All models listed are designed for single-speed or simple drivetrain setups and use a square-taper bottom bracket. Verify compatibility with your frame, spindle length, and pedal threading before purchasing.
PETCHOR Square Taper MTB Crankset: Durable Aluminum And Modular Rings
The PETCHOR Square Taper MTB crankset emphasizes high-strength aluminum alloy construction, delivering improved rigidity while keeping weight manageable. Its frosted, anodized finish resists fading over long-term use, preserving aesthetics and performance. The 3-piece chainring design enables straightforward upgrades or modifications to single-speed or dual/triple crank setups. A narrow-wide tooth arrangement enhances chain retention, reducing derailment risks on rough trails. Arm length is 170mm, and the set supports 9/16″ pedals, with a 45mm chainline and 158mm chainring diameter for a compact, efficient footprint. This crankset suits riders seeking a robust, modular platform for customization and easy maintenance.
Features at a glance include: 104BCD compatibility, removable chainring for easy replacement, and a total chainring diameter suited for single-speed configurations. The overall build focuses on durability under strenuous MTB use, with protective finishes that resist wear in muddy or rocky environments. As an upgrade, the 3-ring compatibility allows easy upgrades from single to more complex drivetrains, should your bike’s setup evolve.
Cyclon Single Speed Square Taper Crankset
Cyclon’s crankset focuses on a balanced mix of durability and chain control, featuring a frosted and anodized aluminum surface for longevity in rugged MTB conditions. The crank arm is 170mm long and designed for 104BCD single-speed chainrings, with compatibility for 9/16″ pedals. The narrow-wide tooth pattern improves chain retention, ensuring consistent shifting and reduced drop-offs when tackling technical terrain. Available chainring configurations range from 32T to 42T in a round, black finish, giving riders flexible gearing choices for climbing or sprinting. The design emphasizes easy maintenance and a robust threaded area that resists wear in challenging environments.
Key considerations include: compatibility with single-speed builds, availability of multiple chainring sizes, and the balance between weight and stiffness. Cyclon’s approach makes this crankset a practical upgrade for riders seeking reliable performance without a complex multi-speed drivetrain.
BUCKLOS 170mm Square Taper Crankset
BUCKLOS markets a lightweight, durable option with roughly 609g weight, designed for mountain, commuter, and even some e-bike applications. The 104BCD crankset offers a choice of chainrings from 32T to 42T, with round or oval shapes and dual colorways (Black/Red). The narrow-wide chainring design contributes to secure engagement on rough terrain. The set is labeled as suitable for single-speed configurations, and its 4mm-thick chainring teeth provide a balance of rigidity and mud clearance. The crank’s compatibility with popular drive systems (Shimano, SRAM, FSA) makes it a versatile upgrade path for riders who want a simple, reliable drivetrain for urban or light off-road use.
Considerations include weight-to-strength trade-offs, the availability of different tooth profiles, and how the crankset’s chainline aligns with your frame. If you’re prioritizing a lightweight setup and straightforward maintenance, BUCKLOS provides a credible option.
MTB Crankset With 170mm Arm And 104 BCD
This mountain bike crankset highlights a 170mm crank arm length with a 104BCD configuration, designed for compatibility with 8/9/10/11-speed single-speed setups. The square-taper interface is built from ultralight aluminum alloy, with a frosted and anodized finish for long-lasting protection. Available chainring options range from 32T to 42T, enabling riders to tailor gearing for climbs or flat sections. The crank is positioned as a robust, straightforward upgrade for riders who want dependable performance without the complexity of multi-speed drivetrains. Its simple installation and durable finish make it suitable for all-mountain use and daily commuting alike.
Important notes include confirming your bottom bracket compatibility and ensuring your bike frame can accommodate a 45mm chainline. This crankset is best suited for riders prioritizing reliability and ease of maintenance in single-speed contexts.
Mountain Crankset 170mm Square Taper
This listing summarizes an adaptable square-taper crankset option designed for multi-range compatibility and straightforward upgrades. The 170mm crank arms paired with a 104 BCD provide versatility for riders who want to tailor gearing to climbing or fast sections. The included chainring selections (32T–42T) align with common single-speed or lightly driven MTB configurations. The design emphasizes durability with an anodized finish and a frosted surface to resist wear from mud and grit. While not explicitly branded in some listings, the product’s features correspond to a robust square-taper solution for riders seeking a reliable, easy-to-maintain upgrade that supports incremental gearing changes.
Buying Guide: MT B Square Taper Cranksets
Buying Guide – Key purchase considerations and comparisons:
– Compatibility: Confirm square-taper bottom bracket compatibility, pedal threading (9/16″ is common), and chainline requirements (typically around 45mm for MTB setups).
– Chainring options: Look for a broad range of chainring sizes (32T–42T) and the availability of narrow-wide tooth designs to reduce chain drops on rough terrain.
– Material and finish: Aluminum builds with anodized finishes resist corrosion and wear in muddy or gritty conditions; frosted surfaces help seal the alloy from the elements.
– Weight vs. stiffness: Lighter cranksets save watts on climbs, but ensure adequate stiffness for aggressive riding. A balance between weight and rigidity is essential for all-mountain use.
– Upgradability: Three-piece (or modular) cranksets allow easier upgrade paths to different chainrings or chainline configurations without replacing the entire system.
– Brand ecosystem: Some options are more widely compatible with Shimano/SRAM or FSA cranks, which can simplify future upgrades, maintenance, and replacement parts.
– Intended use: For single-speed bikes, prioritize chain retention, simple maintenance, and a robust finish. For bikes in mixed-terrain use, consider chainring options that support a wider gearing range while maintaining reliability.
– Installation and maintenance: Verify BB axle compatibility and whether spacers or adapters are needed for your frame. Regular cleaning and torque checks extend crankset life.