Best Budget 1X Crankset

#1 · Best Overall

1. Shimano Deore M5100 170mm 30T

• Material: Aluminum
• Weight: 3.4 lb

Best for: Deore 10/11-speed replacement.

Why it ranks #1: Its 30T ring and 170mm arms suit an MTB setup, and the listing specifies 10/11-speed use, 96 BCD, and a 52mm chainline.

Shimano’s stated 52mm chainline is the key fit detail on this M5100 Deore crankset, pairing a 170mm arm option with a 30T chainring for rear 10/11-speed drivetrains. Its aluminum arms and 96mm asymmetric four-bolt pattern give buyers concrete specifications to check against a replacement build.

The 30T chainring and 170mm arm length define this version’s gearing and crank dimension, while the listed 96mm asymmetric four-bolt pattern identifies its mounting layout. Shimano specifies it for a 52mm chainline and rear 10/11-speed use, helping narrow the intended drivetrain match. Aluminum arms keep the stated material straightforward. The product title specifies the 30T version without a chain guide and without bottom-bracket parts, so those package details matter when planning an installation.

Skip it if you need a crank supplied with bottom-bracket parts; this listing explicitly excludes them.

This M5100 suits a rider replacing a crank on a rear 10/11-speed setup that calls for a 52mm chainline and 170mm arms. Check those specifications and plan separately for bottom-bracket parts, which are not included.

Listed on Amazon as: Shimano M5100 Deore Crankset, For Rear 10/11-SPEED, 170mm, 30T W/O CG, W/O BB PARTS, FOR CHAIN LINE 52MM

#2 · Widest Ring Choice

2. BUCKLOS 104 BCD Crankset

• Material: Aluminum
• Weight: 0.99 kg
• Size: Round -32T

Best for: Multi-ring-size trail builds.

Why it ranks #2: The narrow-wide ring is offered from 30T to 38T, with 170mm arms, 104 BCD, and stated 7-12-speed chain compatibility.

A choice of 30T through 38T chainrings, including round and oval shapes, is the defining feature of the BUCKLOS 104 BCD crankset. That spread lets a mountain-bike builder choose a specific ring profile and size while retaining the listed 170mm crank arms and single-speed narrow-wide tooth design.

The CNC aluminum crank and chainring are specified as lightweight and high in axial strength, pairing a material choice with a construction detail relevant to a mountain-bike setup. The 104 BCD crankset uses 170mm arms, and the narrow-wide chainring is listed in five tooth counts from 30T to 38T. BUCKLOS states compatibility with 7–12-speed chains and single, double, or triple chainring setups; check that broad drivetrain specification against the intended configuration.

Skip it if you need shorter arms; GANOPPER’s 152mm square-taper crankset lists that arm length.

Choose this BUCKLOS crankset if your build calls for 170mm arms, 104 BCD, and a narrow-wide ring with several listed sizes or shapes. Its specified crank length is 170mm, so riders seeking a shorter arm should look elsewhere.

Listed on Amazon as: BUCKLOS 104 BCD 30T-38T Mountain Bike Crankset, Hollow Integrated 170MM

#3 · Square Taper Pick

3. BOLANY Square Taper Crankset

• Material: Aluminum
• Weight: 1.1 kg
• Size: 36T

Best for: Square-taper MTB refresh.

Why it ranks #3: This 1x square-taper set offers 32T, 34T, or 36T rings and 170mm arms for riders with a compatible square-taper setup.

The uncoated crank arms give this BOLANY crankset its clearest distinction, with the listing associating that finish with reduced friction and noise and protection from scratches and corrosion. Its 104 BCD, 170mm arms, and choice of 32T, 34T, or 36T chainrings make it a defined option for single-speed bicycle builds.

A 104 BCD interface and square-taper format identify the crankset’s mounting approach, while the 170mm arm length gives buyers a specific crank dimension to match to a build. The listed 32T, 34T, and 36T choices let a rider select among three ring sizes rather than being limited to one. BOLANY also describes high-strength 7075 aluminum alloy arms as ultralight; the uncoated finish is presented as helping resist scratches and corrosion while reducing friction and noise.

Skip it if you need a chainring larger than 36T; WEEROCK’s 42T crankset offers a larger listed ring.

A rider refreshing a single-speed bicycle who wants 170mm square-taper arms and a choice of smaller 104 BCD rings should consider this BOLANY set. Its listed chainring options top out at 36T, so it is not the pick for a larger ring.

Listed on Amazon as: BOLANY Mountain Bike Crankset MTB 1x Square Taper Crankset 104 BCD 170mm Crank 32/34/36T Compatible with Single Speed Bicycle

#4 · Broad Speed Fit

4. GANOPPER 170mm 104 BCD Crankset

• Material: Aluminum Alloy, 7075 Alu
• Weight: 16 oz

Best for: Narrow-wide multispeed MTB.

Why it ranks #4: The 170mm, 104 BCD crankset has a narrow-wide ring and lists compatibility with 9-, 10-, and 11-speed bikes.

A 30T 7075-alloy narrow-wide chainring is the GANOPPER crankset’s defining setup, with listed compatibility for 9-, 10-, and 11-speed mountain-bike components. Its 170mm arms and 104mm BCD provide key dimensions for riders replacing a crank while converting a mountain or road bike to singlespeed.

The crank arms use 6061 aluminum with a stiffener design, while the chainring is specified as 7075 alloy; those named materials and the stiffener are presented as a durable, lightweight assembly. A 104mm BCD and 170mm arm length give the replacement dimensions, and the 30T narrow-wide ring is listed for 9-, 10-, and 11-speed components. The listing also specifies 9/16-inch pedal compatibility and says a 1/2-by-1/8-inch chain works well.

Skip it if you want a choice of chainring sizes; BUCKLOS lists five options from 30T to 38T.

This GANOPPER is a focused choice for a rider wanting a 30T narrow-wide ring, 170mm arms, and listed 9–11-speed compatibility. Its single specified ring size makes it a poor match if you want to select a different tooth count.

Listed on Amazon as: 170mm Crankset 30T 32T 34T 36T 38T Single Speed Mountain Bike Cycling Road Bike Crank Arm Set

#5

5. Shimano Deore M5100 175mm 30T

• Weight: 3.4 lb
• Size: 175mm/30T

Best for: Deore 1×11 MTB setup.

Why it ranks #5: It specifies 175mm arms, a 30T ring, 96 BCD, and compatibility with 10- and 11-speed drivetrains for riders needing the longer crank length.

Compatibility with both 1×11 and 1×10 drivetrains makes the Shimano Deore FC-M5100 a specific option for riders choosing between those single-chainring setups. This black version combines a 175mm crank length with a 30T ring, two-piece construction, and listed compatibility with 12 x 142mm and 12 x 148mm rear spacing.

Shimano describes the two-piece construction as adding rigidity and efficiency, a practical point for riders selecting a crank for regular drivetrain use. The 175mm arm and 30T ring establish this version’s crank and gearing dimensions, while its stated 1×10 and 1×11 compatibility identifies the intended speed range. Shimano also lists 12 x 142mm and 12 x 148mm rear spacing compatibility, giving buyers two specific frame-spacing configurations to compare with their bike.

Skip it if you need 32T gearing; Shimano’s FC-M5100 175mm/32T version offers that listed ring size.

Choose this Deore crank if your mountain-bike setup uses 1×10 or 1×11 and matches the listed rear spacing. Its 175mm arms and 30T ring are fixed in this version, so confirm those dimensions suit your build.

Listed on Amazon as: SHIMANO Deore Fc-M5100 Crankset Black, 175Mm/30T

#6

6. Shimano Deore M5100 175mm 32T

• Size: 175mm/32T

Best for: 32T Deore trail gearing.

Why it ranks #6: This Deore option combines 175mm arms and a 32T ring, with the listing specifying 96 BCD and 10/11-speed drivetrain compatibility.

A 32T chainring distinguishes this Shimano Deore FC-M5100 from the listed 30T version, while retaining 175mm arms and a 96 BCD. Shimano specifies the crankset for 10- and 11-speed drivetrains, giving mountain-bike builders a clearly defined gearing and compatibility combination.

The 32T single chainring sets the gear choice, and the 175mm arms establish the crank length for a mountain-bike application. Shimano lists 10- and 11-speed drivetrain compatibility, which helps identify the intended transmission range, while the 96 BCD specifies the ring’s mounting pattern. The black Deore M5100 crankset is supplied as a crankset, with the listing naming the crankset as the included component. Match the drivetrain, arm length, and BCD to the intended build.

Skip it if you want 30T gearing; Shimano’s Deore FC-M5100 175mm/30T crankset lists that ring size.

Choose this Deore M5100 for a mountain-bike build calling for 32T gearing, 175mm arms, and a 10- or 11-speed drivetrain. Its listed ring and arm dimensions are specific, so check both against the intended setup.

Listed on Amazon as: SHIMANO Deore Fc-M5100 Crankset Black, 175Mm/32T

#7 · Short Arm Option

7. GANOPPER Square Taper Crankset

• Material: Aluminum, Aluminum 7075
• Weight: 0.71 kg
• Size: 152mm

Best for: Short-arm square-taper builds.

Why it ranks #7: Its 152mm arms and 30T narrow-wide ring suit a rider specifically seeking shorter cranks; the listing says the bottom bracket is not included.

The 152mm arm option sets this GANOPPER square-taper crankset apart for a build that calls for shorter cranks. Its removable 104 BCD, 30T narrow-wide chainring is listed as changeable to a larger ring, while the product specifies 9/16-inch pedals and explicitly excludes the bottom bracket.

A 152mm crank-arm length provides a specific shorter option, and the removable 104 BCD chainring gives a route to modifying the setup with a larger ring. The supplied 30T ring uses a narrow-wide tooth profile and is listed for 8-, 9-, 10-, and 11-speed single-speed crankset applications. Its square-taper interface identifies the crank format, while the stated 9/16-inch pedal size helps clarify pedal compatibility. The bottom bracket is not included.

Skip it if you need a bottom bracket in the package; this crankset is listed without one.

Pick this GANOPPER for a square-taper build needing 152mm arms and a removable 104 BCD ring. Account for the separately sourced bottom bracket, and note that the supplied chainring is 30T even though it can be modified.

Listed on Amazon as: MTB Crank Arm Set 104 BCD Square Taper Mountain Bike Crankset 152mm 165mm 170mm

#8

8. microSHIFT Sword Black 1x

• Material: Metal
• Weight: 2.7 lb
• Size: Arm Length 170mm

Best for: Sword gravel 1x groups.

Why it ranks #8: The 40T ring and 50mm chainline target gravel-oriented use, but it is designed for Sword groups and a 68x113mm JIS square-taper bottom bracket.

The 40T chainring and 50mm chainline give the microSHIFT Sword Black crankset its gravel-oriented setup, specifically pairing with Sword Black or original Sword 1x groups. Its 170mm aluminum arms use a JIS square-taper interface, making it a targeted choice for riders building around that drivetrain and bottom-bracket platform.

The 110mm asymmetric four-bolt BCD defines the chainring mounting pattern, while the 40T ring and 50mm chainline establish the intended gearing layout. Aluminum crank arms and chainring keep the material consistent across the assembly. The crank uses a JIS square-taper interface and is compatible with a 68 x 113mm JIS square-taper bottom bracket, which is sold separately. microSHIFT says it is not compatible with 2x chainrings, so the setup remains specifically 1x.

Skip it if you need a 2x setup; this crankset is explicitly not compatible with 2x chainrings.

This microSHIFT crank fits riders using a Sword 1x group who want its 40T gravel-oriented gearing and JIS square-taper platform. The 68 x 113mm bottom bracket is separate, and the crank is not compatible with 2x chainrings.

Listed on Amazon as: microSHIFT Sword Black 1x Crankset – 9/10-Speed, 40t, 110 Asym BCD, JIS Square Taper Spindle Interface, Black

#9

9. WEEROCK 42T Crankset

• Material: Aluminium
• Weight: 2.1 lb

Best for: 42T multispeed MTB builds.

Why it ranks #9: Its 42T narrow-wide ring, 170mm arm, and 104 BCD fit a broad range of listed drivetrain speeds, though the ring is large for many MTB builds.

The 42T narrow-wide chainring is the defining feature of this WEEROCK crankset, with the tooth profile intended to help prevent chain drop. It combines 170mm arms, a 104 BCD mounting pattern, and listed compatibility spanning single-speed through 11-speed mountain-bike setups, plus folding bikes.

The narrow-wide tooth design is described as helping prevent chain drop, addressing chain retention in use, while the 42T ring supplies the chosen gearing. A 104 BCD pattern allows future chainring replacement according to the listing, and the 170mm arm length provides a defined crank dimension. WEEROCK specifies compatibility with single-speed and 6-, 7-, 8-, 9-, 10-, and 11-speed MTB bikes, as well as folding bikes. The aluminum-alloy crankset is listed at 0.6kg net weight.

Skip it if you need a 48T chainring; WEEROCK’s 48T crankset lists that larger ring.

This WEEROCK suits a rider seeking 42T gearing, a narrow-wide profile, and 104 BCD for possible ring replacement. Its specified arm length is 170mm and the listed chainring is 42T, boundaries to account for before choosing.

Listed on Amazon as: WEEROCK Mountain Bike Crankset Aluminium Alloy 1 Piece/Single 42T Charing Crank Set with 170mm Arm 104 BCD, Compatible with Single Speed Bicycle and 6/7/8/9/10/11 Speeds MTB Bike

#10

10. WEEROCK 48T Crankset

• Material: Steel, Aluminium Alloy
• Weight: 2.2 lb

Best for: Covered commuter chainring.

Why it ranks #10: The 48T ring and chain cover suit some commuter or e-bike setups, but its large ring makes it less aligned with typical 1x MTB gearing.

A single-sided aluminum chain cover is the practical distinction of this WEEROCK crankset: the maker says it helps keep the chain from soiling pants and prevents fabric from rolling into it. The 48T steel chainring and 170mm arms suit listed single-speed and 6/7/8/9-speed bicycle applications.

The 48T ring is made of steel, which WEEROCK describes as high-strength and durable, while the 170mm crank arm sets a clear installation dimension. Its unilateral aluminum-alloy chain cover addresses everyday clothing protection by shielding the chain on one side. The listed applications include single-speed, 6-, 7-, 8-, and 9-speed bicycles, as well as mountain, road, electric, and folding bikes. The crankset and arm weigh 0.85kg, a useful handling detail for a build plan.

Skip it if you want a smaller 42T ring; WEEROCK’s 42T crankset lists that alternative.

A commuter or folding-bike rider seeking a 48T ring and a cover to protect clothing may value this WEEROCK setup. Its listed ring is 48T, so it is not a match for a build needing smaller gearing.

Listed on Amazon as: WEEROCK E-Bike/Bicycle Crankset MTB Road Bikes Crank Set 46T/48T Charing Alumininum Alloy Single Side Chain Cover and 170mm Arm, Compatible with Single Speed Bicycle and 6/7/8/9 Speeds Bicycles, Black