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julio 26, 2026

128mm Alta Bicycle Conversion Kit Crank Set Black Bottom Bracket Kit Cruiser BB.

Specifications: Shell Width:68mm: This conversion kit is designed to fit standard American bottom bracket shells with a width of 68mm, commonly found on cruiser, BMX, and vintage bicycles. Spindle Type:SQR JIS (Square Tapered Japanese Industrial Standard): The spindle features a square taper interface, which is the most common standard for three-piece cranksets. It ensures compatibility with a wide variety of crank arms designed for square-tapered bottom brackets. Cup Material:Steel: The bottom bracket cups are made of durable steel, providing excellent strength and longevity. Steel ensures that the bottom bracket will withstand the pressures of pedaling and off-road use. Threading Interface:24 TPI (Threads Per Inch): This is the threading standard for the cups, designed to fit American-style bottom bracket shells that have 24 TPI threading. Spindle Length:128mm: The spindle is 128mm in length, suitable for many three-piece cranksets. The length of the spindle determines the chainline, which is important for ensuring proper gear alignment on multi-speed bikes. Spindle Material:Chromoly (Chromium-Molybdenum Steel): The spindle is made from chromoly, a strong and lightweight alloy known for its durability. Chromoly spindles are more resistant to bending and wear than standard steel spindles. Color:Black: The black finish gives the bottom bracket conversion kit a polished, corrosion-resistant surface that adds aesthetic appeal while protecting against rust. Conversion Function:Converts 1-Piece to 3-Piece Cranksets: This conversion kit allows you to replace the old one-piece crank (common in American bottom brackets) with a more modern three-piece crank system. This upgrade provides better performance, efficiency, and a wider range of crankset options.Brand & Manufacturer:Brand: Alta, a recognized brand in the cycling industry known for offering durable and well-made bicycle components, particularly for cruiser and BMX bikes.Manufacturer: F&R Cycle Inc., a reputable manufacturer specializing in a wide range of bicycle parts and accessories, particularly for lowrider, cruiser, and custom bikes.Components Included: Spindle: Made of chromoly steel, with a 128mm length and square taper JIS interface. Bearing Cups: Press-fit steel cups that fit into the bottom bracket shell and house the bearings. These are threaded to accommodate American 24 TPI standard bottom brackets. Ball Bearings: Includes two sets of ball bearings that facilitate smooth crank rotation. Dust Covers/Seals: Protective dust seals or covers to prevent dirt and moisture from entering the bottom bracket area, increasing the lifespan of the bearings. Lockring and Retaining Hardware: Hardware to secure the bearing cups in place and prevent any unwanted movement during use.Functionality:1-Piece to 3-Piece Conversion: This kit allows you to convert older American-style bottom brackets that use one-piece cranks (common on vintage, cruiser, and BMX bikes) into modern three-piece cranks, which are lighter, more efficient, and offer a wider range of options.Improved Performance: By upgrading to a three-piece crank system, you get better pedaling efficiency, lighter components, and more precise crankset options, particularly important for multi-speed and performance bikes.Applications:Cruiser Bikes: Ideal for cruiser bikes that originally came with one-piece cranks but can be upgraded for better performance.BMX Bikes: Frequently used to convert older BMX bikes to accommodate three-piece cranksets.Vintage/Classic Bikes: Perfect for upgrading vintage bikes with outdated bottom bracket designs.Custom Builds: Ideal for custom bicycle builds where a modern crankset is desired on a frame that has an American-style bottom bracket shell.Advantages:Enhanced Performance: Switching to a three-piece crank provides better power transfer, smoother rotation, and lighter overall weight compared to a one-piece crank system.Durability: Chromoly spindles and steel cups provide long-lasting durability and are suitable for both recreational and performance cycling.Compatibility: Converts American-style bottom brackets (68mm) into a standard three-piece crank setup, which is widely supported by modern crank arms.
julio 26, 2026

132mm Alta Bicycle Conversion Kit Crank Set Black Bottom Bracket Kit Cruiser BB.

Specifications: Shell Width:68mm: This conversion kit is designed to fit standard American bottom bracket shells with a width of 68mm, commonly found on cruiser, BMX, and vintage bicycles. Spindle Type:SQR JIS (Square Tapered Japanese Industrial Standard): The spindle features a square taper interface, which is the most common standard for three-piece cranksets. It ensures compatibility with a wide variety of crank arms designed for square-tapered bottom brackets. Cup Material:Steel: The bottom bracket cups are made of durable steel, providing excellent strength and longevity. Steel ensures that the bottom bracket will withstand the pressures of pedaling and off-road use. Threading Interface:24 TPI (Threads Per Inch): This is the threading standard for the cups, designed to fit American-style bottom bracket shells that have 24 TPI threading. Spindle Length:132mm: The spindle is 132mm in length, suitable for many three-piece cranksets. The length of the spindle determines the chainline, which is important for ensuring proper gear alignment on multi-speed bikes. Spindle Material:Chromoly (Chromium-Molybdenum Steel): The spindle is made from chromoly, a strong and lightweight alloy known for its durability. Chromoly spindles are more resistant to bending and wear than standard steel spindles. Color:Black: The black finish gives the bottom bracket conversion kit a polished, corrosion-resistant surface that adds aesthetic appeal while protecting against rust. Conversion Function:Converts 1-Piece to 3-Piece Cranksets: This conversion kit allows you to replace the old one-piece crank (common in American bottom brackets) with a more modern three-piece crank system. This upgrade provides better performance, efficiency, and a wider range of crankset options.Brand & Manufacturer:Brand: Alta, a recognized brand in the cycling industry known for offering durable and well-made bicycle components, particularly for cruiser and BMX bikes.Manufacturer: F&R Cycle Inc., a reputable manufacturer specializing in a wide range of bicycle parts and accessories, particularly for lowrider, cruiser, and custom bikes.Components Included: Spindle: Made of chromoly steel, with a 132mm length and square taper JIS interface. Bearing Cups: Press-fit steel cups that fit into the bottom bracket shell and house the bearings. These are threaded to accommodate American 24 TPI standard bottom brackets. Ball Bearings: Includes two sets of ball bearings that facilitate smooth crank rotation. Dust Covers/Seals: Protective dust seals or covers to prevent dirt and moisture from entering the bottom bracket area, increasing the lifespan of the bearings. Lockring and Retaining Hardware: Hardware to secure the bearing cups in place and prevent any unwanted movement during use.Functionality:1-Piece to 3-Piece Conversion: This kit allows you to convert older American-style bottom brackets that use one-piece cranks (common on vintage, cruiser, and BMX bikes) into modern three-piece cranks, which are lighter, more efficient, and offer a wider range of options.Improved Performance: By upgrading to a three-piece crank system, you get better pedaling efficiency, lighter components, and more precise crankset options, particularly important for multi-speed and performance bikes.Applications:Cruiser Bikes: Ideal for cruiser bikes that originally came with one-piece cranks but can be upgraded for better performance.BMX Bikes: Frequently used to convert older BMX bikes to accommodate three-piece cranksets.Vintage/Classic Bikes: Perfect for upgrading vintage bikes with outdated bottom bracket designs.Custom Builds: Ideal for custom bicycle builds where a modern crankset is desired on a frame that has an American-style bottom bracket shell.Advantages:Enhanced Performance: Switching to a three-piece crank provides better power transfer, smoother rotation, and lighter overall weight compared to a one-piece crank system.Durability: Chromoly spindles and steel cups provide long-lasting durability and are suitable for both recreational and performance cycling.Compatibility: Converts American-style bottom brackets (68mm) into a standard three-piece crank setup, which is widely supported by modern crank arms.
julio 26, 2026

132mm Alta Bicycle Conversion Kit Crank Set Chrome Bottom Bracket Kit Cruiser BB

Specifications: Shell Width:68mm: This conversion kit is designed to fit standard American bottom bracket shells with a width of 68mm, commonly found on cruiser, BMX, and vintage bicycles. Spindle Type:SQR JIS (Square Tapered Japanese Industrial Standard): The spindle features a square taper interface, which is the most common standard for three-piece cranksets. It ensures compatibility with a wide variety of crank arms designed for square-tapered bottom brackets. Cup Material:Steel: The bottom bracket cups are made of durable steel, providing excellent strength and longevity. Steel ensures that the bottom bracket will withstand the pressures of pedaling and off-road use. Threading Interface:24 TPI (Threads Per Inch): This is the threading standard for the cups, designed to fit American-style bottom bracket shells that have 24 TPI threading. Spindle Length:132mm: The spindle is 132mm in length, suitable for many three-piece cranksets. The length of the spindle determines the chainline, which is important for ensuring proper gear alignment on multi-speed bikes. Spindle Material:Chromoly (Chromium-Molybdenum Steel): The spindle is made from chromoly, a strong and lightweight alloy known for its durability. Chromoly spindles are more resistant to bending and wear than standard steel spindles. Color:Chrome: The chrome finish gives the bottom bracket conversion kit a polished, corrosion-resistant surface that adds aesthetic appeal while protecting against rust. Conversion Function:Converts 1-Piece to 3-Piece Cranksets: This conversion kit allows you to replace the old one-piece crank (common in American bottom brackets) with a more modern three-piece crank system. This upgrade provides better performance, efficiency, and a wider range of crankset options.Brand & Manufacturer:Brand: Alta, a recognized brand in the cycling industry known for offering durable and well-made bicycle components, particularly for cruiser and BMX bikes.Manufacturer: F&R Cycle Inc., a reputable manufacturer specializing in a wide range of bicycle parts and accessories, particularly for lowrider, cruiser, and custom bikes.Components Included: Spindle: Made of chromoly steel, with a 132mm length and square taper JIS interface. Bearing Cups: Press-fit steel cups that fit into the bottom bracket shell and house the bearings. These are threaded to accommodate American 24 TPI standard bottom brackets. Ball Bearings: Includes two sets of ball bearings that facilitate smooth crank rotation. Dust Covers/Seals: Protective dust seals or covers to prevent dirt and moisture from entering the bottom bracket area, increasing the lifespan of the bearings. Lockring and Retaining Hardware: Hardware to secure the bearing cups in place and prevent any unwanted movement during use.Functionality:1-Piece to 3-Piece Conversion: This kit allows you to convert older American-style bottom brackets that use one-piece cranks (common on vintage, cruiser, and BMX bikes) into modern three-piece cranks, which are lighter, more efficient, and offer a wider range of options.Improved Performance: By upgrading to a three-piece crank system, you get better pedaling efficiency, lighter components, and more precise crankset options, particularly important for multi-speed and performance bikes.Applications:Cruiser Bikes: Ideal for cruiser bikes that originally came with one-piece cranks but can be upgraded for better performance.BMX Bikes: Frequently used to convert older BMX bikes to accommodate three-piece cranksets.Vintage/Classic Bikes: Perfect for upgrading vintage bikes with outdated bottom bracket designs.Custom Builds: Ideal for custom bicycle builds where a modern crankset is desired on a frame that has an American-style bottom bracket shell.Advantages:Enhanced Performance: Switching to a three-piece crank provides better power transfer, smoother rotation, and lighter overall weight compared to a one-piece crank system.Durability: Chromoly spindles and steel cups provide long-lasting durability and are suitable for both recreational and performance cycling.Compatibility: Converts American-style bottom brackets (68mm) into a standard three-piece crank setup, which is widely supported by modern crank arms.
julio 26, 2026

VINTAGE LOWRIDER CHROME CRANK PACKAGE, FLAT TWISTED PEDALS 20″ LOWRIDER BICYCLES

These components are well-suited for a single-speed bike, particularly one with a lowrider, cruiser, custom, or vintage aesthetic. The 1-piece crank is compatible with the bottom bracket and chainring, while the chain fits perfectly with the chainring's tooth profile. The flat twisted pedals and chrome finishes across all components ensure both functional performance and a cohesive, polished look. This setup is ideal for a durable, stylish, and smooth-riding single-speed bicycle.
julio 26, 2026

Sunlite One-Piece Crank Bearings 24 TPI Press Fit Bottom Bracket Cup Set Silver

BB SET SUNLT 1pc 24tpi SLOne-piece bottom bracket cup set. Bearings included. Item Specifications: BB Shell Width (mm), 68mm, Spindle Interface Type, OPC, BB/Frame Interface, 24 tpi, Weight, 265g, Disc Material, Steel Sil, Cup Type, Press Fit, Cup OD/Bearing OD, 51mm, HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us
julio 26, 2026

Sunlite One-Piece Crank Bearings 24 TPI Press Fit Bottom Bracket Cup Set Black

BB SET SUNLT 1pc 24tpi BKOne-piece bottom bracket cup set. Bearings included. Item Specifications: BB Shell Width (mm), 68mm, Spindle Interface Type, OPC, BB/Frame Interface, 24 tpi, Weight, 265g, Disc Material, Steel Blk, Cup Type, Press Fit, Cup OD/Bearing OD, 51mm, HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us
julio 26, 2026

ALTALINE BICYCLE CHROME 1/PIECE CRANK BOTTOM BRACKET SET 5/16 X 9 24TPI.

Specifications Ball Retainer Size: 5/16 inchThis size refers to the diameter of the ball bearings used in the bottom bracket.Ball Retainer Count: 9 balls, which are typically arranged in a circular pattern to provide smooth rotation. Shell Width: 68mmThis is the standard width for many road and mountain bike bottom brackets.Ensures compatibility with frames designed for 68mm bottom bracket shells. Interface: 24 TPI (Threads Per Inch)Indicates the threading standard used in the bottom bracket.This is a common English (BSA) threading, compatible with a variety of bike frames. Cup Type: Press Fit 51mmThe bottom bracket cups are designed to fit directly into the frame's bottom bracket shell.A press-fit design allows for easier installation and a more secure fit.Material and Finish Material: SteelProvides durability and strength, ensuring long-lasting performance under various riding conditions.Steel construction is common for bottom brackets, offering good resistance to wear. Color: ChromeThe chrome finish enhances corrosion resistance and adds aesthetic appeal to the bike.Chrome-plated surfaces also reduce friction, contributing to smoother operation.CompatibilityBikes: Suitable for a wide range of bicycles, including:Road BikesMountain BikesHybrid BikesTouring BikesBMX Bikes (depending on specific frame design)InstallationInstallation Method: Press-fitRequires a specific press tool for proper installation into the bottom bracket shell.Ensure alignment during installation to avoid damaging the frame or the bottom bracket.MaintenanceRegular Inspection: Check for any signs of wear or noise during operation. Listen for creaking sounds which may indicate worn bearings.Cleaning: Regular cleaning of the external parts and periodic lubrication of the bearings can enhance performance and longevity.This Bottom Bracket works well with vintage Schwinn bikes with 24 tpi 1 piece cranks, as well as new cruisers, antique ballooners, rat rods, BMX, townies, chopper, and lowriders.
julio 26, 2026

Sunlite One-Piece Crank Bearings 28 TPI Press Fit Bottom Bracket Cup Set Silver

BB SET SUNLT 1pc 28tpi SLOne-piece bottom bracket cup set. Bearings included. Item Specifications: BB Shell Width (mm), 68mm, Spindle Interface Type, OPC, BB/Frame Interface, 28 tpi, Weight, 265g, Disc Material, Steel Sil, Cup Type, Press Fit, Cup OD/Bearing OD, 51mm, HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us
julio 26, 2026

VINTAGE LOWRIDER (2)Bicycle SINGLE BICYCLE STEEL BottomBracket Cup CHROME (51mm)

Specifications: Cup Type:Style: Press Fit.Designed to be securely pressed into the bottom bracket shell of the bicycle frame.Provides a snug fit for optimal alignment and smooth rotation of the crankset.Application: Compatible with one-piece cranks commonly found on lowrider, cruiser, and vintage bicycles. Material:Base Material: High-grade steel.Known for its durability and resistance to deformation under high loads.Provides a robust foundation for the bottom bracket bearings.Finish: Chrome-plated.Enhances resistance to corrosion, ensuring longevity even in harsh environments.Offers a polished, reflective surface for a premium aesthetic appeal. Size:Diameter: 51mm outer diameter.Standard size for many lowrider and cruiser bike frames.Ensures compatibility with most 51mm bottom bracket shells. Color:Finish: Chrome.Provides a sleek and stylish appearance that complements other chrome-plated components on a lowrider or vintage bicycle. Brand:Name: Vintage Lowrider.Reputation: Renowned for producing high-quality, aesthetically appealing components tailored for lowrider and classic bicycle enthusiasts.Design and Functionality: Purpose:Serves as a housing for the bottom bracket bearings and crank spindle.Ensures smooth and efficient rotation of the crankset by maintaining proper alignment. Durability:Steel construction offers excellent resistance to wear and deformation, even under repetitive pedaling forces.Chrome plating adds a layer of protection against rust and corrosion, making it ideal for bikes exposed to outdoor elements. Ease of Installation:Press Fit System:The cup is inserted into the bottom bracket shell and pressed into place using appropriate tools.Secure fit prevents movement or wobbling during use.Compatibility:Fits most lowrider and vintage bike frames with a 51mm bottom bracket shell.Aesthetic Appeal:The chrome finish enhances the overall look of the bicycle, blending seamlessly with other chrome-plated components such as cranksets, pedals, and fenders.Adds a polished, professional touch to lowrider and vintage bike builds, particularly those aiming for a custom or show-ready appearance.Applications and Compatibility: Bicycle Types:Specifically designed for lowriders, cruisers, and classic vintage bicycles equipped with a one-piece crank system. Crank Compatibility:Works seamlessly with one-piece cranks, a common design for lowrider and cruiser bikes. Bottom Bracket Shell:Fits frames with a 51mm bottom bracket shell diameter.Maintenance and Longevity: Maintenance Tips:Regularly clean and grease the bottom bracket cups and bearings to maintain smooth performance and prevent rust.Periodic inspection is recommended to ensure the cups remain securely pressed into the frame. Longevity:The steel construction and chrome plating ensure that this bottom bracket cup will provide reliable performance for years, even under demanding conditions.