SRAM NX Eagle 12 Speed Rear ShifterEnjoy optimised shifting performance with the Eagle 12 Speed Rear Shifter from SRAM. Featuring some of their finest technologies including Zero Loss and X-Actuation for smooth shifts and sharp shifting across the trail.The NX Eagle Single Click trigger shifter limits over-shifts that rob performance and battery life on E-MTBs. Designed to precisely control gear selection in higher-torque and lower-cadence E-MTB applications, the NX Eagle single click shifter also helps to increase the life of the entire drivetrain NX Eagle means easy, intuitive shifting every time for every rider.E-MTB Shifter with Eagle TechnologyEagle technology represents SRAM's 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11 drivetrains.Features: Use: Electric Mountain Bike (E-MTB) Material: aluminium/Plastic, Stainless Steel hardware Compatibility: All Eagle drivetrains Shifters: SRAM Eagle Speed: 12 Speed Mount: Standard 22.2mm handlebar mount Weight: 112gTechnologies: Zero Loss: The gear cable is engaged instantly with zero loss of movement when you press a shift trigger, every gear change is instant and precise. X-Actuation: Developed specifically for SRAM 1x drivetrains, X-Actuation keeps shifting sharp and consistent across the entire cassette. This makes gears easy to index and provides exceptional performance. Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The basis of every Eagle drivetrain is its chain-and the NX Eagle chain is designed and manufactured using genuine SRAM's Eagle architecture, so it is fully compatible with every other component in the Eagle ecosystem. The NX Eagle chain features solid pin construction, Eagle PowerLock and smooth, efficient shifting that you can count on every time out.Key Features:Eagle PowerLock chain connector with FLOW LINK technology provides better chain-guiding and increased longevity.,Unique features and design also provide significantly improved wear resistance on Eagle cassettes and rings..Technology:PowerlockSRAM chain engineers developed PowerLock as a tool free, sure, and consistent way to connect our chains. While PL does not require special tools for install, the especially tight tolerances of 10- and 11-speed drivetrains mandate that each PowerLock is good for a one-time application only.EagleEagle technology represents our newest 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features all-new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11 drivetrains.FlowlinkUltra-smooth chain inner-plates are completely devoid of square edges, resulting in a chain that engages the cassette and chainring with far less friction, for quieter performance and better wear life. The design allows a narrower overall profile that can withstand greater angles, and also allows for a flatter outer-plate, which means more consistent chain riveting and enhanced overall strength.Specification:Compact - Speed (CN) - 12s-Eagle,Outer Link Finish - Polished,Colour Outer Link - Grey,Inner Link Finish - Polished,Colour Inner Link - Grey,Chain Connector - PowerLock,Chain Length (Links) - 126 Links,Pin Variant - Solid Pin,Weight (G) - 252,Weight Based On - 114 Links.
SRAM NX Eagle Boost 12 Speed MTB ChainsetEnjoy professional performance with the Eagle 12 Speed Mountain Bike (MTB) Chainset from SRAM. Designed to deliver optimised power distribution, thanks to the DUB bottom bracket system, it has been made for Boost frames and features a wider chainline for cleaner clearance with the frames rear end. Features: Material: Aluminium (chainring), 7000 series Aluminium (crank arm) Bottom Bracket Type: DUBCrank Arm Length:Axle Diameter:Chainrings Included: YesChainring Bolt Circle Diameter (BCD): Direct MountChainring Size: 32 ToothChainline: 52mm Recommended Chain: SRAM Eagle Technology Highlights: X-Sync 2, DUB™ Technology Compatibility: All Eagle drivetrainsSpeed: 12 SpeedTechnologies X-Sync 2: X-Sync 2 Eagle is the next evolution of SRAM X-Sync technology. The aggressive tooth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-Sync Eagle design reduces friction and the accumulation of mud, grit and grime. DUB™ Technology: The relationship between the bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler, by better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Strong and lightweight to cope with the demands of rigorous riding, this Eagle DUB chainset is designed to be durable and stiff, with every part of the crankset working together to ensure efficient and effective performance with every rotation. Utilising the aggressively toothed X-Sync 2 chainring, the aluminium-built spider keeps a superb hold on your chain and provides a smooth feel as you propel yourself to greatness. The 7000 series aluminium crank arms allow for explosive power transfer as you rise uphill and sprint along the straight, with the wider BOOST design chainline allowing you to make the most of your larger frame and tyres to push your off-road rides to the very limit. Technologies X-Sync 2: X-Sync 2 Eagle is the next evolution of SRAM X-Sync technology. The aggressive tooth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-Sync Eagle design reduces friction and the accumulation of mud, grit and grime. DUB Technology: The relationship between bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler, by better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance.
Strong and lightweight to cope with the demands of rigorous riding, this Eagle DUB chainset is designed to be durable and stiff, with every part of the crankset working together to ensure efficient and effective performance with every rotation. Utilising the aggressively toothed X-Sync 2 chainring, the aluminium-built spider keeps a superb hold on your chain and provides a smooth feel as you propel yourself to greatness. The 7000 series aluminium crank arms allow for explosive power transfer as you rise uphill and sprint along the straight, with the wider BOOST design chainline allowing you to make the most of your larger frame and tyres to push your off-road rides to the very limit. Technologies X-Sync 2: X-Sync 2 Eagle is the next evolution of SRAM X-Sync technology. The aggressive tooth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-Sync Eagle design reduces friction and the accumulation of mud, grit and grime. DUB Technology: The relationship between bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler, by better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance.
Bringing all the power and performance expected from a SRAM crankset, this 12-speed Eagle DUB model provides superb rotation and control as from its lightweight and durable aluminium build as you rock off-road and push for the podium.
This SRAM NX Eagle DUB groupset features SRAM’s revised, optimised and updated “DUB” bottom bracket system, which delivers performance increasing integration between the crank, spindle and bottom bracket. This groupset is perfect for riders seeking performance and future-proof drivetrain compatibility without breaking the bank. SRAM NX Eagle DUB Chainset The NX Eagle DUB chainset is engineered to deliver Eagle 12 speed performance and styling that everyone can enjoy. In addition to the excellent chain retention that’s provided by the X-SYNC™2 chainrings, this chainset provides outstanding power transfer and durability due to the highly advanced DUB bottom bracket system. DUB bottom brackets are available (sold separately) to suit all popular bottom bracket shell types, including BSA (English Threaded), BB86/BB92, PF30, BB386, BB30a and BB Right. Chainset Features: Material: Aluminium (chainring), 7000 series Aluminium (crank arm) Bottom Bracket Interface: SRAM DUB Chainline: 49mm Bolts: Direct mount Recommended Chain: SRAM Eagle Compatibility: All Eagle drivetrains Weight: 705g (175mm, 32T ring) SRAM NX Eagle DUB 12-Speed Shifter Despite the NX model falling under the “entry level” category, SRAM has still managed to pack in some of its best technologies. These include ZeroLoss™ and X-Actuation™ technologies, which combine to offer instant shifts and sharp shifting across the full cassette range. Shifter Features: Material: Aluminium/Plastic, Stainless Steel hardware Compatibility: All Eagle drivetrains Matchmaker compatible for dropper remote and brake lever integration Weight: 112g SRAM NX Eagle DUB 12-Speed Rear Derailleur As seen on the top-of-the-line XX1 and X01 models, the NX Eagle rear derailleur also adopts SRAM’s 1x specific X-Horizon™ cage design. This carefully engineered mechanism ensures capacity for the huge 11-50T cassette and compliments the smooth Performance of an Eagle 12 speed system. This derailleur also boasts SRAM’s Type-3 Roller Bearing Clutch™ for unrivalled durability and quiet consistent performance. Features: Material: Aluminium (cage), Steel (spring, pulley), Stainless Steel (hardware) Max Tooth: 50T Compatibility: All Eagle drivetrains Weight: 339g SRAM 12-Speed Chain At the core of all Eagle drivetrains, the 12 speed Eagle chain is designed and manufactured with SRAM’s Eagle™ architecture. This ensures perfect compatibility with all of the other components in any Eagle ecosystem for highly efficient, smooth and quiet shifting that you can take for granted each and every time you hit the trails. Features: Material: Steel Rivet Type: Solid pin Compatibility: All Eagle drivetrains Weight: 278g (126 links) SRAM NX Eagle 12-Speed Cassette SRAM designed its NX Eagle cassette to provide riders with the option of upgrading to 12 speed, but without the need for a hub or wheel upgrade. Ready to fit straight onto standard “splined-drive” freehubs and offering a massive 11-50T range, this cassette gives you the climbing range you need to attack the climbs and the smooth performance to get the most out of your other Eagle components. This cassette is also designed to be durable enough for the extra demands and abuse of E-MTB use. Features: Material: 8 lightweight, stamped steel cogs and 4 high-strength steel cogs pinned onto an aluminium spider Recommended Chain: Eagle chain only Compatibility: All Eagle drivetrains Weight: 615g Technologies: X-Sync 2: X-Sync 2 Eagle is the next evolution of SRAM X-Sync technology. The aggressive tooth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-Sync Eagle design reduces friction and the accumulation of mud, grit and grime. DUB Technology: The relationship between the bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler, by better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance. Zero Loss: The gear cable is engaged instantly with zero loss of movement when you press a shift trigger, every gear change is instant and precise. Matchmaker X Integrated: You can put everything from your XLoc suspension lockout, your SRAM shifters and brake levers as well as your Reverb XLoc remote, all on two clamps. It's the ideal way to put everything within easy reach and tidies up your bike's cockpit. Cage Lock: With Cage Lock technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place Roller Bearing Clutch: The Roller Bearing Clutch delivers maximum drivetrain stability even through the most punishing terrain. This stability benefits the drivetrain dramatically, as derailleur bounce and chain slap are eliminated without sacrificing precision X-Actuation: Developed specifically for SRAM 1x drivetrains, X-Actuation keeps shifting sharp and consistent across the entire cassette. This makes gears easy to index and provides exceptional performance. X-Horizon: The X-Horizon ‘straight parallelogram' design limits all movement on the horizontal axis, which makes ghost shifting impossible while also reducing shift force. The large upper pulley offset design maintains a constant chain gap across all gears and guarantees faster and more exact shifting. Flow Link: Ultra-smooth chain inner-plates are completely devoid of square edges, resulting in a chain that engages the cassette and chainring with far less friction, for quieter performance and better wear life. The design allows a narrower overall profile and a flatter outer plate that can withstand greater shifting angles. This means more consistent chain riveting and enhanced overall strength is achieved. PowerLock: SRAM chain engineers developed PowerLock as a tool-free and consistent way to connect mountain bike chains. While PowerLock does not require special tools for installation, the especially tight tolerances of 10, 11 and 12-Speed drivetrains mandate that each PowerLock is good for a one-time application only. X-Glide 2: This optimised cassette technology, which has been custom designed for the Eagle drivetrain is the next generation of X-Glide shifting. It provides quick, precise, power-on shifting performance throughout the gear range, and increases chain retention on larger cogs.
SRAM NX Eagle DUB 12 Speed MTB ChainsetBringing you 12-Speed compatibility and the outstanding chain grip of SRAM’s X-Sync 2 chainring at a budget-friendly price, the NX Eagle DUB chainset is ready to tear up the trails. Its advanced chainring combines with your Eagle chain and cassette for smooth, quiet and consistent operation and the stiff DUB bottom bracket system makes the most of every pedal stroke. With this mountain bike (MTB) crankset installed on your ride, feel free to attack the descents, dive into the berms and take on the biggest drops and jumps, because it will keep coming back for more.Features:Material: Crank Arms: 6000 series Aluminium; Chainring: SteelSpeed: 12-SpeedAxle Size: 28.99mm (DUB specific)Bottom Bracket Interface: SRAM DUBBottom Bracket Included: NoChainline: 49mmCrankset Bolt Circle Diameter (BCD): Direct mountChainring Included: YesRecommended Chain: SRAM EagleTechnology Highlights: X-Sync 2, DUB™ TechnologyCompatibility: All Eagle drivetrainsManufacturer's Part Number: FC-NX-1-C1Weight: 638g (170mm)TechnologiesEagle: Eagle technology represents our newest 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features updated 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11-Speed drivetrainsX-Sync 2: X-Sync 2 Eagle is the next evolution of SRAM X-Sync technology. The aggressive tooth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-Sync Eagle design reduces friction and the accumulation of mud, grit and grimeDUB™ Technology: The relationship between the bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler, by better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performanceBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
This SRAM NX Eagle DUB groupset features SRAM’s revised, optimised and updated “DUB” bottom bracket system, which delivers performance increasing integration between the crank, spindle and bottom bracket. This groupset is perfect for riders seeking performance and future-proof drivetrain compatibility without breaking the bank. SRAM NX Eagle DUB Chainset The NX Eagle DUB chainset is engineered to deliver Eagle 12 speed performance and styling that everyone can enjoy. In addition to the excellent chain retention that’s provided by the X-SYNC™2 chainrings, this chainset provides outstanding power transfer and durability due to the highly advanced DUB bottom bracket system. Features: Material: Aluminium (chainring), 7000 series Aluminium (crank arm) Bottom Bracket Interface: SRAM DUB Chainline: 52mm Bolts: Direct mount Recommended Chain: SRAM Eagle Compatibility: All Eagle drivetrains Weight: 705g (175mm, 32T ring) SRAM NX Eagle DUB 12-Speed Shifter Despite the NX model falling under the “entry level” category, SRAM has still managed to pack in some of its best technologies. These include ZeroLoss™ and X-Actuation™ technologies, which combine to offer instant shifts and sharp shifting across the full cassette range. Features: Material: aluminium/Plastic, Stainless Steel hardware Compatibility: All Eagle drivetrains Matchmaker compatible for dropper remote and brake lever integration Weight: 112g SRAM NX Eagle DUB 12-Speed Rear Derailleur As seen on the top-of-the-line XX1 and X01 models, the NX Eagle rear derailleur also adopts SRAM’s 1x specific X-Horizon™ cage design. This carefully engineered mechanism ensures capacity for the huge 11-50T cassette and compliments the smooth Performance of an Eagle 12 speed system. This derailleur also boasts SRAM’s Type-3 Roller Bearing Clutch™ for unrivalled durability and quiet consistent performance. Features: Material: Aluminium (cage), Steel (spring, pulley), Stainless Steel (hardware) Max Tooth: 50T Compatibility: All Eagle drivetrains Weight: 339g SRAM 12-Speed Chain: At the core of all Eagle drivetrains, the 12 speed Eagle chain is designed and manufactured with SRAM’s Eagle™ architecture. This ensures perfect compatibility with all of the other components in any Eagle ecosystem for highly efficient, smooth and quiet shifting that you can take for granted each and every time you hit the trails. Features: Material: Steel Rivet Type: Solid pin Compatibility: All Eagle drivetrains Weight: 278g (126 links) SRAM NX Eagle 12-Speed Cassette SRAM designed its NX Eagle cassette to provide riders with the option of upgrading to 12 speed, but without the need for a hub or wheel upgrade. Ready to fit straight on to standard “splined-drive” freehubs and offering a massive 11-50T range, this cassette gives you the climbing range you need to attack the climbs and the smooth performance to get the most out of your other Eagle components. This cassette is also designed to be durable enough for the extra demands and abuse of E-MTB use. Features: Material: 8 lightweight, stamped steel cogs and 4 high-strength steel cogs pinned onto an aluminium spider Recommended Chain: Eagle chain only Compatibility: All Eagle drivetrains Weight: 615g Technologies: X-Sync 2: X-Sync 2 Eagle is the next evolution of SRAM X-Sync technology. The aggressive tooth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-Sync Eagle design reduces friction and the accumulation of mud, grit and grime. DUB Technology: The relationship between the bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler, by better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance. Zero Loss: The gear cable is engaged instantly with zero loss of movement when you press a shift trigger, every gear change is instant and precise. Matchmaker X Integrated: You can put everything from your XLoc suspension lockout, your SRAM shifters and brake levers as well as your Reverb XLoc remote, all on two clamps. It's the ideal way to put everything within easy reach and tidies up your bike's cockpit. Cage Lock: With Cage Lock technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place Roller Bearing Clutch: The Roller Bearing Clutch delivers maximum drivetrain stability even through the most punishing terrain. This stability benefits the drivetrain dramatically, as derailleur bounce and chain slap are eliminated without sacrificing precision X-Actuation: Developed specifically for SRAM 1x drivetrains, X-Actuation keeps shifting sharp and consistent across the entire cassette. This makes gears easy to index and provides exceptional performance. X-Horizon: The X-Horizon ‘straight parallelogram' design limits all movement on the horizontal axis, which makes ghost shifting impossible while also reducing shift force. The large upper pulley offset design maintains a constant chain gap across all gears and guarantees faster and more exact shifting. Flow Link: Ultra-smooth chain inner-plates are completely devoid of square edges, resulting in a chain that engages the cassette and chainring with far less friction, for quieter performance and better wear life. The design allows a narrower overall profile and a flatter outer plate that can withstand greater shifting angles. This means more consistent chain riveting and enhanced overall strength is achieved. PowerLock: SRAM chain engineers developed PowerLock as a tool-free and consistent way to connect mountain bike chains. While PowerLock does not require special tools for installation, the especially tight tolerances of 10, 11 and 12-Speed drivetrains mandate that each PowerLock is good for a one-time application only. X-Glide 2: This optimised cassette technology, which has been custom designed for the Eagle drivetrain is the next generation of X-Glide shifting. It provides quick, precise, power-on shifting performance throughout the gear range, and increases chain retention on larger cogs.
It’s how you start that matters. Whether you’re discovering the mountain for the first time or you’re an MTB lifer searching for a no-nonsense, no-worries 1x drivetrain, SRAM NX Eagle™ is ready for action and ready to take you there. NX Eagle™ brings you a wide range of gear choices engineered for simplicity and durability, so you can focus on what matters most—the ride ahead. German engineered and proudly bearing the SRAM Eagle™ stamp of approval, NX Eagle™ is ready to let the world know what real riding feels like. START NEW. START RIGHT. START WITH SRAM NX Eagle™.Eagle™ is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle™ drivetrains are used as a complete ecosystem.
The SRAM NX crankset delivers Eagle™ styling and performance to the newest addition to the Eagle™ ecosystem. Designed for SRAM's X-SYNC™2 chainrings, the NX crankset is engineered for complete chain control-each tooth's profile is precisely engineered to work quietly, efficiently and securely with the Eagle™ chain's inner and outer links. DUB™ technology features a better-engineered bottom bracket and a new spindle design, which together allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of performance and durability.Eagle™ technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents.Eagle™ is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle™ drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact.Key Features:6000 series forged aluminium arms,DUB™ technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible.,ISO 4210 compliant. See Declaration of Conformity for details.,Speeds: 11/12,BB Compatibility: DUB BSA MTB 100, DUB PF MTB 121, DUB BSA73, DUB PF89.5, DUB PF92, DUB PF30 MTB73, DUB BB30 MTB73,Chainring Size: 30, 32,Crank arm length: 165mm, 170mm, 175mm,Chainline: 66.5mm,BB Spindle Interface: DUB,Chainring material: Steel,Guard: No Guard,Bolt Circle Diameter (BCD): Direct Mount (DM),Crank arm material: Aluminium,Colour (Crank arm): Black.
The SRAM NX crankset delivers Eagle™ styling and performance to the newest addition to the Eagle™ ecosystem. Designed for SRAM's X-SYNC™2 chainrings, the NX crankset is engineered for complete chain control-each tooth's profile is precisely engineered to work quietly, efficiently and securely with the Eagle™ chain's inner and outer links. DUB™ technology features a better-engineered bottom bracket and a new spindle design, which together allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of performance and durability.Eagle™ technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents.Eagle™ is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle™ drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact.Key Features:6000 series forged aluminium arms,DUB™ technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible.,ISO 4210 compliant. See Declaration of Conformity for details.,Speeds: 11/12,BB Compatibility: DUB BSA MTB 100, DUB PF MTB 121, DUB BSA73, DUB PF89.5, DUB PF92, DUB PF30 MTB73, DUB BB30 MTB73,Chainring Size: 30, 32,Crank arm length: 165mm, 170mm, 175mm,Chainline: 52.0mm,BB Spindle Interface: DUB,Chainring material: Steel,Guard: No Guard,Bolt Circle Diameter (BCD): Direct Mount (DM),Crank arm material: Aluminium,Colour (Crank arm): Black.