Best Folding Bike Cranksets in 2026

175mm crank arm length

Comes with 3 chainrings - 42/32/22

Comes with a chainguard

072774210169

Shimano FC-M311 Altus square taper chain set, 42/32/22T, without chain guard, 175 mm

Made of 7075 aluminum alloy&TITANIUM,super lightweight and durable

Double Chainring Bolts:Nut Shaft Diameter:10mm.Nut Shaft Length:6.5mm.Bolt Head Diameter:8mm.Bolt Head Length:8mm

Single Chainring Bolts:Nut Shaft Diameter:10mm.Nut Shaft Length:4.5mm.Bolt Head Diameter:8mm.Bolt Head Length:6mm

【Crank】:104 BCD ultralight mountain bike crank, only can be used on Single speed chainring. Crank Arm Length: 170mm, Crank weight: 550g, Crank related holes distance: 74mm.

【Chainring】Snail single speed narrow wide teeth chainring, 104BCD, 32/34/36/38/40/42T, Round/Oval, Black/Red, Chainring thickness 4mm (Narrow teeth: 1.9mm, Wide teeth: 3.7mm), Weight: about 45g.

【Note】These crank and chainring are only suitable for single speed. Can not be used on other speed. If you have any problem before or after purchase, feel free to contact us.

Material: Alloy 6061 crank, high-strength steel chainring, detachable sprocket, easy to modify single-speed chainring. Scope of application: mountain bikes, hybrid vehicles, old school, cruisers, off-road vehicles, folding bikes, road bikes, track and field bikes, unicycles, city bikes.

Crank length: 170mm, BCD: 104mm(44T,32T), 64mm(22T)

Compatible speed: 7S/8S/9S, square cone BB (113mm~116mm spindle)

Teeth: 48T, Crank Arm: 170mm, BCD: 130mm (Not include Bottom Bracket)

Pedal Size: 9/16". Chain Size: suitable for 1/2" X 1/8" single speed chains, doesn't support any variable speed chains

170mm crank arm length without any overlap of crank arm and chainring bolt

PLEASE NOTE: Before purchasing this product, please make sure that the size of this product is consistent with the size you need. Product Size:21 x 2 x 1cm/8.3 x 0.8 x 0.4inch(LxWxH).

Constructed with premium aluminum alloy, the crank is durable and strong.

The center distance between two holes is 170mm.

Compatible with BB 68x118MM,68x120MM,68x122MM;Forged Alloy crankarms w/ solid carbon steel chainring

Pedal crankarms:165mm(Total Length:200mm);Square taper interface

Compatible with 9/16 inch pedals; Diameter of Chainring:132mm

【MATERIAL】This crank arm set is made of forged aluminum alloy 6061-T6 and steel chainring, which is of high strength and durable, weight is approx 625g/1.38lb.

【SIZE】 Crank Arm length: 170mm, chainring（3/32" 52T), Compatible with 9/16 inch pedals, chain size 1/2"*1/8", chain line 45mm, B.B.Axle recommended 117.5mm. External width between chain guard is 20mm (0.79in), total diameter of chain guard is 226mm (8.9in).

【COMPATIBILITY】Easy Installation，A good replacement for bike repair, compatible with city folding bike. Check Frame chain stay clearance before purchase.

LIGHT WEIGHT - This 104 BCD with 4 holes crankset protective cover for 40-42T Mountain Bike. This is a simple and lightweight design and is made of high-quality plastic. Tip: The diameter of the Bike Crankset Guard is 175mm/6.88 in. BCD is 104mm/4.09 in. The distance between two adjacent holes is 74mm/2.91 in. Please check the size of the product and whether it fits your mountain bike before buying.

COMPREHENSIVE PROTECTION - This crankset protective cover is sturdy, not easy to break. It can completely prevent your bicycle chainring from scratching, and it can better protect your pants, shoes, and socks

EASY TO INSTALL- Equipped with four brass heightening washers, crank screws and spring washers. Just follow the installation steps suggested in the manual, you can easily complete the installation

Package: 5pcs Black Bike Disc Chainwheel Bolts, Effective Height: 4.9mm, Work Perfectly on Single Chainring.

Feature: Light weight, high hardness, large twisting force, bright color.

High Quality: Made of anodizing 1018 steel with fine workmanship, anti-rust, corrosion resistance, anti-impact, sturdy and durable to use.

HIGH QUALITY MATERIAL: The crank arms are made of high quality materials, this product is sturdy and durable.High strength, high hardness, not easy to deform.

PERFECT DESIGN:The crank arms adopt sample design, fine workmanship, used for bike mid drive motor installation.Total length and width is approximately 21 * 3.8cm / 6.3 * 5.9inch.Weight is approximately 450g.

Note:The product is a special crank for Tongsheng mid-mounted motor.

Perfect for ebikes and electric bicycles looking to sustain a higher top speed.

170mm Crank Arm Length without any overlap of crank arm & chainring bolts

Standard Bolt Circle Diameter (BCD): 130, Fits 9/16 inch pedal axle

【Durable Material】: Constructed with premium aluminum alloy, the bike crank arm is durable and strong, has fine polishing, smooth edges, ensures high strength for long lasting usage

【170mm Bicycle Left Crank Arm】: The center distance between two holes is 170mm, spindle interface type, horizontal square taper, without any overlap of crank arm and chain ring bolt

【Ideal Bike Crankset Accessory】: Left hand pedal crank arm is suitable for road bike, mountain bike, folding bike, fixed gear bicycle, etc; A nice replacement for bike repair, compatible with many bike models

Material: The Bicycle crank arms are made of Forged Alloy 6061, this crank arm is sturdy and durable,High strength, high hardness, not easy to deform.

Size: This Bike Crank Arm Length is available in 5 sizes（152MM/160MM/165MM/170MM/175MM）,Before purchasing this product, please make sure that the size of this product is consistent with the size you need.

Spindle Interface Type: Square taper. Please check if the orientation of your right crank is Square. Keep both left and right things having the same hole.

【Premium Crank Set】Folding bike crankset with 45T 47T 53T 56T 58T 130 BCD Black single speed chainring, please do not use it with other chainrings.

【Guard Chainring】The guard can prevent the teeth of chains from being damaged and extended the service life.

【Crank set】Square Cranksets, Crank arm length: 170mm. Weight: About 600g

52T (teeth) chain ring is 215mm in diameter

Forged aluminum 170mm length crank arms are the strongest on the market

Fits square taper bottom brackets

【Chainring】Narrow Wide Teeth. The new narrow-wide teeth design increases chain retention, wear life, and reduces dropping chain /friction /noise. (Note: Please do not use it with other chainring)

【Cool and Stylish】Hollow design, which makes the chainring lighter and more cool.

【Crank】High quality and strength square crankset, Crank arm length: 170mm. Weight: About 500g

SOLID & DURABLE: This double lock screw is made of qualified steel, solid, firm and durable, good treatment with fine texture, ensures a long service life

FUNCTIONAL USES: 8 pairs of screws and nuts a pack, enough for you to use. It is used to fix the the crankset and crank of the chain wheel, very convenient and practical to use

FINE WORKMANSHIP: CNC machined and anodized color, with maximum precision and durability, colorfast and anti-corrosive

【Premium Quality】This bike crank arms is made of premium quality Forged Alloy 6061 T6 material, which is sturdy and durable in use. It is not easily damaged and deformed, has reliable quality and ensures high strength for long lasting usage.

{Crank}crank arm length is 170mm.

{Basic Info}BCD 110mm

Material: Aluminum alloy, high axial strength and compatibility;

Teeth: 46T, crankarms length: 170mm, BCD: 130mm;

Compatible with 9/16 inch pedals; 1/2"*1/8" chain work well on this crankset;

Single Speed Crankset Teeth: 45T 47T 53T 56T 58T.

BCD: 130mm; Crankarms: 170mm. Made of Aluminum Alloy.

Suitable Pedal Size: 9/16 inches. Chain Size: Standard 1/2 inches X 1/8 inches.

Material：7075 T6 Aluminum Alloy Crankset.Rugged and durable, Precision tooth shape,smooth shifting.High strength removable chainring,Easy to retrofit

Specification:Hollow Integrated.170mm crank arm leagth.130BCD Duable chainring.39/53T teeth chainring.115mm axle length

Comes with Bottom Bracket and crank dust cap. Crank dust cover effectively protects the crank. Threaded central axis: suitable for 68/73mmBSABB. BSA1.37*24T/68-73mm,Fit for Shimano

【Size】: 48T, 170mm crank, , 1x, Outer Diameter: 210 mm

【Material】: Steel alloy bicycle square crank, strong, convenient and cheap. Here's an easy and quick alternative to bike repairs.

【Design】: Black ABS plastic protective case. Versatile color design, and prevent the chain from falling off.

HIGH COMPATIBILITY: Suitable for BMX Bike, BMX Bike - Old School, Cruiser, Cyclocross Bike, electric bicycles, folding bicycles, hybrid / comfortable bicycles, mountain bicycles.

EXQUISITE WORKMANSHIP: Sample design, fine workmanship, used for bike mid drive motor installation.

EASY INSTALL: Lightweight and small size, easy to install and use.

LIGHTWEIGHT: Made of premium aluminium alloy with hollow design, this crank set is lightweight, adding no heaviness to bike.

LONG SERVICE TIME: Standard precision machining ensures chain retention, increases service life, and reduces friction and noise.

COMPATIBLE: The BCD of this crank arm is about 130mm, and the compatible bottom bracket is 107-110mm.

【Duarable Material】These crank sets are made from high strength material, ensuring they are long-lasting, lightweight and handle the abusive ways of the trail. Featuring irregular teeth and chain pick-up pins for smooth and fast shifts. High strength steel and CNC aluminium to ensure longevity.

【Compatible With】Crank Arm length: 170mm, Chainring（3/32" 48T)，compatible with 9/16" pedals, chain size 1/2"*3/32, total diameter of chain guard is 208mm (8.19in). Applicable for 20-26 inch folding bike. Please measure the size Check Frame chain stay clearance to confirm it fit your bike before you order.

【New Design】Our crankset has high strength, can be used for a long time. Light weight design, adding no heaviness to you bike, make riding more comfortable and relaxing. Double alloy chainring cover, avoid chain rubbing riders pants, prefect for daily commuting.

E-bike, Folding Bike, Fixed-Gear, Single-Speed, or Fixie bike aluminum crank arms

170mm Crank Arm Length in strong aluminum material

Fits square taper bottom bracket spindles, Fits 9/16" Pedal axles

GREAT CRANK SET SET FOR EFFICIENT CYCLING: This bike crank set makes ride more efficiently, professional bike replacement for folding bikes.

DETAILED SPECIFICATION: 170mm crank arm length, 5 bolts fixing. Bolt circle diameter (BCD): 130mm, fits on all speed road bikes.

PREMIUM MATERIAL MADE: The bike crank set set is made of aluminum alloy for ultimate strength and reliability.