Anodized 7075 CNC Machined BMX 25T Sprocket With Bash Guard
100% Brand new and high quality!
Narrow wide tooth profiling prevents chain drop
Exquisite workmanship with high technology that the chain can effect better.
It is protable and durable.
Easy to use and to operate.
Positive tooth corresponding chian tooth width; tooth corresponding negative chain is narow.
Bicycle Sprocket Guard: Robust Protection for Drivetrain Durability
The Bicycle Sprocket Guard by Luckyway Metal is a high-performance accessory designed to protect the sprocket and chain from impacts, debris, and wear, ensuring drivetrain reliability for road, mountain, and BMX bicycles. Crafted by a leading China-based manufacturer with over a decade of CNC-machining expertise, it’s made from 6061 T6 aluminum or high-impact nylon, features precision-machined mounting points, and is compatible with chainrings (25t-52t) or cassettes (11-50t) using standard chain pitches like 1/2x1/8" for single-speed and 3/32" for multi-speed drivetrains. Ideal for competitive cyclists, recreational riders, and bike customizers, it builds on your interest in precision components like bicycle sprockets, hubs, and go-kart sprocket guards, reflecting Luckyway’s reputation for lightweight, durable parts with global shipping. Whether you’re grinding on BMX ramps or navigating rocky trails, this sprocket guard delivers strength, corrosion resistance, and easy installation for enhanced drivetrain protection.
What Is a Bicycle Sprocket Guard?
A Bicycle Sprocket Guard is a precision-engineered shield that surrounds the sprocket—either a front chainring or rear cassette—to protect it from impacts, debris, and chain derailment, extending drivetrain life by 20-30%. Made from CNC-machined aluminum or high-impact nylon, it reduces damage from rocks, grinds, or crashes by 95%, maintaining chain alignment and sprocket integrity. This guard enhances durability, aligning with your focus on components like car valve caps and oil sandwich plates. Unlike chain guides, which focus on chain retention, sprocket guards prioritize physical protection, essential for high-performance cycling or custom builds where drivetrain reliability is critical.
Why Use a Bicycle Sprocket Guard?
Sprocket guards reduce sprocket damage by 95%, preventing costly replacements, and their robust design protects chains from derailment, improving drivetrain efficiency by 10%. Their lightweight construction minimizes added weight, and durable materials resist wear in harsh conditions. Luckyway’s sprocket guard, designed for 1/2x1/8" or 3/32" chains, offers 800-1200 hours of corrosion resistance for aluminum versions, complementing your interest in durable parts like hub centric rings and seatpost clamps. Their precision fitment and stylish aesthetics simplify installation and enhance bike appearance, making them vital for protection, performance, and style, resonating with your inquiries about lightweight, durable bicycle parts.
Designed for Durability and Compatibility
Luckyway Metal’s Bicycle Sprocket Guard is engineered for universal fitment, compatible with chainrings (25t-52t, 104mm/130mm BCD) or cassettes (11-50t, Shimano Hyperglide/SRAM XD) on road, mountain, and BMX bikes from brands like Trek, Specialized, and Haro. Available in black, silver, red, or blue anodized aluminum or matte black nylon, it features 4/5-bolt mounting for chainrings or direct hub attachment for cassettes, with laser-etched logos. Its CNC-machined construction ensures a secure fit, reflecting Luckyway’s expertise in parts like dual filter clamps and bicycle hubs, delivering dependable performance across diverse cycling conditions.
Key Features of the Bicycle Sprocket Guard
Luckyway Metal’s Bicycle Sprocket Guard combines premium materials, functional design, and cyclist-focused reliability, making it essential for drivetrain protection. Here’s what sets it apart.
CNC-Machined 6061 T6 Aluminum or High-Impact Nylon
Crafted from 6061 T6 aluminum with 45000 PSI tensile strength or high-impact nylon with 12000 PSI impact resistance, the guard weighs approximately 0.1-0.3 pounds, optimized for strength and lightness. Anodized aluminum finishes provide 800-1200 hours of corrosion resistance, while nylon resists cracking, ideal for rugged trails. This durability mirrors Luckyway’s bicycle sprockets and car valve caps, ensuring long-term reliability.
Precision-Machined Mounting Points for Secure Fit
Featuring 4/5-bolt patterns for chainrings or hub-compatible cassette mounts, the guard ensures 99% secure attachment, preventing vibration or misalignment. This precision, ideal for BMX or mountain bikes, aligns with your interest in reliable components like oil sandwich plates, enhancing drivetrain stability and protection.
Lightweight Design for Performance Optimization
The aluminum or nylon construction minimizes weight, adding less than 0.3 pounds, preserving bike agility. Its sleek finishes, complementing your focus on performance parts like car bumper quick releases, add a polished look, ideal for competitive or custom builds.
Universal Fit with Easy Installation
Fits chainrings (104mm/130mm BCD, 25t-52t) or cassettes (11-50t, Shimano/SRAM) on brands like Trek or Haro, compatible with 1/2x1/8" or 3/32" chains. Installs in under 5 minutes with a 4mm hex key, including hardware, mirroring Luckyway’s user-friendly seatpost clamps, making it accessible for all cyclists.
Applications of the Bicycle Sprocket Guard
Luckyway Metal’s Bicycle Sprocket Guard is versatile and durable, serving diverse protection, durability, and aesthetic needs, resonating with your interest in components like CNC clutch covers, foot pegs, and go-kart sprocket guards.
Competitive Cycling and BMX Racing
For BMX racers or mountain bikers, the guard’s robust protection prevents sprocket damage during grinds, jumps, or rock strikes, ensuring uninterrupted performance. Its lightweight design enhances agility, similar to your focus on performance wheel hubs, delivering a competitive edge.
Recreational and Urban Cycling
For recreational riders on hybrid or city bikes, the guard’s debris protection reduces chain derailment on uneven roads, minimizing maintenance. Its corrosion resistance suits wet conditions, aligning with your interest in durable car oil drain plugs, ensuring reliability.
Custom Bicycle Builds
DIY builders, reflecting your interest in engine mount adapter plates and shift knobs, use the guard for custom bikes with brands like Specialized or Cannondale. Its anodized finishes and precise fit enhance drivetrain aesthetics, complementing Luckyway’s stator covers for a polished build.
Bike Maintenance and Upgrades
For bike shop mechanics or home tinkerers, the guard’s easy installation simplifies drivetrain protection upgrades, improving sprocket longevity. Its durability supports frequent use, aligning with your safety buckle inquiries, making maintenance straightforward.
Technical Specifications and Usage Guide
To maximize the Bicycle Sprocket Guard’s performance, understanding its specs and installation is key.
Size and Compatibility
Dimensions: Chainring guards: 4-6-inch diameter, 0.2-inch thickness, 104mm/130mm BCD; Cassette guards: 3-5-inch diameter, 0.15-inch thickness; Fits 25t-52t chainrings, 11-50t cassettes.
Mounting: 4/5-bolt chainring patterns or hub-mounted cassette guards; includes M5 bolts for chainrings.
Compatibility: Fits road, mountain, and BMX bikes (e.g., Trek, Specialized, Haro) with 1/2x1/8" (single-speed/BMX) or 3/32" (multi-speed) chains.
Material Strength and Durability
Material: 6061 T6 aluminum or high-impact nylon.
Tensile Strength: Aluminum: 45000 PSI; Nylon: 12000 PSI impact resistance.
Durability: Anodized aluminum ensures 800-1200 hours corrosion resistance; nylon resists cracking, matching Luckyway’s standards for bicycle hubs and car valve caps.
Step-by-Step Installation Guide
Preparation: Confirm sprocket type (chainring or cassette) and size (e.g., 25t chainring, 104mm BCD). Gather guard, 4mm hex key, M5 bolts (for chainrings), and thread locker.
Positioning: For chainrings, remove the crankset, align the guard with the sprocket’s 104mm/130mm BCD, and ensure bolt holes match. For cassettes, remove the rear wheel and align the guard with the cassette’s hub mounting points.
Securing: For chainrings, fasten the guard and sprocket to the crankset with M5 bolts, tightening to 8-10 ft-lbs in a star pattern with thread locker. For cassettes, secure the guard to the hub with provided hardware, tightening to 5-7 ft-lbs, then reattach the cassette and wheel.
Final Check: Spin the pedals to confirm smooth chain engagement and no interference. Test-ride at low speed to verify alignment and stability, re-torquing bolts after 50 miles.
Maintenance Tips
Inspect for dents, corrosion (aluminum), or cracks (nylon) every 500 miles, cleaning with a degreaser and brush. Replace aluminum guards if bent or nylon guards if fractured, typically after 800-1200 hours. Lubricate chain regularly to reduce wear on guard edges, and store spares in a dry case to prevent corrosion, matching Luckyway’s component advice. For BMX or off-road use, check guard alignment after heavy impacts to ensure proper fitment.
Changzhou Luckyway Metal Technology Factory Show
