absoluteBLACK Premium Shimano 110/4 bcd compatible oval chainrings are designed for new type of Shimano cranks Dura-Ace 9100 & Ultegra 8000 only. These are finest oval chainrings on the market in terms of shifting, smoothness of pedaling and manufacturing quality. (They can be also retrofitted to 9000 and 6800 cranks).Size (Mass +/-1g):34T (31g), 36T (37g), 38T (41g), 39T (42g), 50T (120g), 52T (137g), 53T(139g) Compatibility:Shimano Dura-Ace 9100, R9150 Di2 and Ultegra 8000, R8050 Di2. They can also retrofit 9000 and 6800 cranks but use bolt covers for best appearance.Bolts:For Outer chainring please order "Long bolts" from us OR Bolt CoversChanging Inner chainring to oval only? use original boltsMaterial & Finis:CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizingOvality:Optimized to each size separately. 34T- 6.5% ; 36T, 38T, 39T- 11.4%, 50/52/53T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing. Patent PendingIMPORTANTRamps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39T If you wish to use other configuration it will also work, but shifting will be slower and may require more "adjustments" of front dérailleur to be acceptable. Also remember that front dérailleur can only accept max 16T difference between 2 chainrings - this is how Shimano and Sram designed them.Advantages of Absolute Black Road Oval chainrings:One of a kind special oval shape that helps you climb easier and faster (Patent Pending),Over 15% stiffer than Rotor Qrings due to thicker, 5mm construction,Bespoke Absolute Black 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainring,Finest design that provides excellent strength to weight ratio,You will not "feel" the oval shape while pedaling,Your pedaling action will feel smoother,Helps reduce stress on knees and helping your legs remain fresher for longer,You will be able to maintain better cadence while climbing,Reduces possibility of leg cramps,You will reduce chainring/cog shifts by at least 15%.What size should I choose?34T inner chainring should be used with 50T outer ring. It has 6.5% ovality. Use a 34T to help with spinning higher cadence and hilly terrain.36T inner chainring can be used with 50 or 52T outer ring. It has 11.4% ovality. Use a 36T if you’re a strong rider or for rolling terrain.38T inner chainring should be used with 52T outer ring. It has 11.4% ovality. Use a 38T if you’re a very strong rider or for flat terrain.39T inner chainring should be used with 53T outer ring. It has 11% ovality. Use a 39T if you’re a very strong rider or for flat terrain.50T outer chainring – Choose this size if you ride for pleasure or sportive events. This is the most versatile and comfortable size.52T outer chainring - if you race and feel strong, it's the classic outer chainring size and a great option for experienced riders.53T outer chainring - if you race and feel very strong, it's the classic outer chainring size and a great option for powerful riders.Remember when selecting your chainring sizes - it's not about what others use, but about ensuring YOUR ability to maintain a comfortable and effective cadence across the terrain you ride most often. If you ride chainrings that are too large (round or oval), your cadence will be lower. This can affect your performance by prematurely tiring your legs and possibly lead to stress injury in your knee joints.Shifting quality and technologyBoth, inner and outer oval chainrings are optimized with smooth shifting in mind. This is why the back of the Absolute Black Oval road chainring does not feature cutouts, like other oval products on the market. Instead, we design smooth angled surfaces, to help chain to slide quickly and precisely between chainrings. Absolute Black outer oval chainrings have 6 up-shifting ramps, for easy and quick gear change, even under load. Each outer chainring also features 12 down-shifting points. Instead of steel shifting pins we use a CNC machined "ramp and recess" solution. Special raised ramps work in conjunction with the tooth recesses to stabilize the chain when shifting. Our oval chainrings DO NOT require any modification to the front dérailleur in order to work properly (apart from small standard adjustment)Why our oval chainrings workOur premium Oval chainrings work because riders do not produce power evenly through a pedal stroke –the musculature of human legs makes it difficult to maintain an even power delivery to a round chainring. Believe it (or not), but a round chainring doesn't transfer torque to your rear wheel as smoothly as an Oval one. Oval rings work with the natural human physiology. Oval chainrings maximize the part of the stroke where power is produced and minimize resistance where it isn't. As a direct consequence, Oval rings enhance a cyclist’s ability to spin with a smoother power delivery and feel easier on legs while climbing. You will actually feel your pedal stroke to be more "round" with an Oval chainring than with a round chainring.Why using AbsoluteBlack oval chainrings mattersAbsolute Black oval road chainrings deliver power more smoothly to your rear wheel. This means you are better able to generate and maintain, constant cadence. Because oval chainrings reduce the peak loads on knee joints, riders using them get less stress on the joints (knees) and therefore are able to keep certain level of effort for longer. This results in higher average speed. You don’t need to take our word at Absolute Black; 11 scientific studies by leading universities around the globe show that; in comparison to round chainrings, when using oval chainrings, human legs utilize more muscle groups - but each of them to lesser degree. The overall Load from pedalling an oval chainring is spread over greater muscle mass. This has three key benefits; firstly, it gives you the feeling of fresher and more relaxed legs. Secondly; it allows you to achieve higher average speed riding uphill. Thirdly; spreading the pedalling load over more muscles reduces the risk of cramp, even when riding hard. The compound effect of switching to oval chainrings; the relaxed legs, added climbing ability and reduction of cramp means your overall enjoyment of the ride is enhanced.Why our Oval chainrings do not have adjustable timingAt Absolute Black we have extensively studied the relevant performance data regarding the optimum percentage of ovality, shape and, critically, the timing of the oval – the positioning of the high and low points of the oval, in relation to the position of the crank arm and focus this into one single mounting position – this is the really important part of what makes Absolute Black Oval chainrings so effective. By simplifying our oval chainring design, to reflect a single high performance ‘sweet-spot’, we are able to make the process of fitting Absolute Black oval chainrings faster and easier, as well as making our rings even lighter.
Key Features:Di2 charger cable for the internal battery that will keep your Di2 system shifting,Di2 uses a powerful long-life 7.4V Li-Ion battery: keep it in top condition and ready for shifting with this specific Shimano Di2 charger,1.5 hour charge time,Plugs in directly to RDR9250 rear derailleur.
Shimano roller brake hub keeps essential braking parts away from water and road dirt, meaning less maintenance and better operationCam roller mechanism provides strong and responsive braking that's easy to control,Hub mounted - eliminates the need to external parts and uses dedicated braking surface,Cooling fin to maintain optimum operating temperature,Inner cable quick release.
Deore M5100 Shadow plus 11-speed rear derailleur for dependable shifting performance and durability. Shadow plus features a super low profile design and optimized slant angle for super light shifting actionKey Features:Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting,Single tension spring prevents contact with the chainstay resulting in a silent ride,13T pulleys and decreased derailleur tension prevent high chain tension in low gears,Direct cable routing prevents snagging from any trail side hazards,Wide alloy links and pivot body,Fluorine-coated link pin bushings,Strong return spring for a positive shifting feel,Durable 13T bearing pulleys for low friction,Top normal spring uses the spring to select higher gears,Max low sprocket: 51T (1x 12-speed),40T capacity SGS cage.
Key Features:Deore Shadow plus 10-speed LINKGLIDE rear derailleur for fast and precise shifting performance with increased durability,Shadow plus features a super low profile design and optimized slant angle for super light shifting action,Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting,Single tension spring prevents contact with the chainstay resulting in a silent ride,13T pulleys and decreased derailleur tension prevent high chain tension in low gears,Direct cable routing prevents snagging from any trail side hazards,Cold forged wide alloy links and pivot body,Fluorine-coated link pin bushings,Strong return spring for a positive shifting feel,Specifically designed to work with LINKGLIDE shifter and 10-speed 1x drivetrains,Top normal spring uses the spring to select higher gears,Max low sprocket: 43T (1x 12-speed),32T capacity GS cage.
Blackspire Snaggletooth Oval Shimano ChainringDesigned with Mountain Bike (MTB) riding in mind, this Oval Shimano Chainring from Blackspire benefits from exceptional torque output and control, no matter what challenges the terrain may bring. Made from durable and lightweight CNC-machined aluminium for exceptional strength, without adding unnecessary weight to your bike.Features:Material: CNC-machined 7075-T6 AluminiumUse: Mountain Bike (MTB)Mount: Direct mountShape: OvalCompatibility: Designed for use with Shimano XT M8000 CranksBuy Blackspire Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SunRace MS3 10 Speed Shimano and SRAM CassetteBringing wide-range gearing to riders with 10-Speed mountain bike (MTB) drivetrains, the MS3 Shimano and SRAM compatible cassette enables you the ability to remove your front gears in favour of a simpler 1x system. This shaves weight from your ride yet still gives you the gears you need for quick acceleration and easy climbing ability. To ensure excellent rigidity and durability with this MTB cassette, SunRace has constructed its first six sprockets onto two alloy spider carriers. The added benefit of this is improved power transfer, as unwanted flexing is prevented as you’re powering over rough sections and attacking steep hills. Features: Speed: 10-Speed Compatibility: 10-Speed chains and Shimano/SRAM 10-Speed MTB drivetrains Freehub Compatibility: Shimano-type Hyperglide (HG) freehubs Use: MTB 6 Sprockets on 2 alloy spider carriers 10-speed wide ratioWeight: 448g (11-42T)Buy SunRace Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Blackspire Snaggletooth DM Shimano MTB Chain RingDeveloped for compatibility with Shimano direct-mount cranks, this versatile chainring features a tough aluminium construction for fantastic durability and longevity on your mountain bike. Coming equipped with Blackspire's highly sought-after Snaggletooth tooth profile, this model uses a modern design to ensure that you won't have to worry about dropping a chain again. One final benefit is this version has also been put through a CNC-machining process, which shaves off any unnecessary weight. The result is a hard-wearing chainring that offers a superior strength to weight ratio on every intense MTB ride. Features: Material: CNC-machined 7075-T6 Aluminium Use: MTB Speed: 9, 10, 11, or 12 speed drivetrains Mount: Shimano Direct mount Chainline: Bi-Directional for 51mm to 55mm chainline Crankset Compatibility: Shimano 9100/8100/7100 Tooth Size: Multiple sizes available separately Single Chainring: YesBuy Blackspire Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
microSHIFT BS-M11 Bar End Shifters Shimano 11 SpeedIdeal for off-road trail riding, the microSHIFT BS-M11 are suited to cross-country and all-mountain adventures. Engineered for use with Shimano 2/3x11-Speed drivetrains, these bar end shifters are indexed for rapid and precise gear shifts up and down your gear range. Plus, they are machined from aluminium for a strong and dependable performance while also being lightweight.Key Features: Bar-End Shifters for 2/3 x 11 Speed Right side: Index / Friction transferable Shimano MTB 11 Speed System compatibleFeatures: Model No.: BS-M11-R Mount Type: Bar End Cassette Compatibility: 11 Speed Rear Shifting: Index / Friction Transferable Bracket Material: Anodized Cold Forged Aluminium Shift Lever Material: Anodized Cold Forged Aluminium Bar Size: 19.0 - 22.0mm Shift Cable: Stainless Slick Weight: 150g Compatibility: Shimano 11 Speed Mountain Bike (MTB) Derailleur CompatibleBuy microSHIFT Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Blackspire Snaggletooth DM Shimano MTB Chain RingDeveloped for compatibility with Shimano direct-mount cranks, this versatile chainring features a tough aluminium construction for fantastic durability and longevity on your mountain bike. Coming equipped with Blackspire's highly sought-after Snaggletooth tooth profile, this model uses a modern design to ensure that you won't have to worry about dropping a chain again. One final benefit is this version has also been put through a CNC-machining process, which shaves off any unnecessary weight. The result is a hard-wearing chainring that offers a superior strength to weight ratio on every intense MTB ride. Features: Material: CNC-machined 7075-T6 Aluminium Use: MTB Speed: 9, 10, 11, or 12 speed drivetrains Mount: Shimano Direct mount Chainline: Bi-Directional for 51mm to 55mm chainline Crankset Compatibility: Shimano 9100/8100/7100 Tooth Size: Multiple sizes available separately Single Chainring: YesBuy Blackspire Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime SR Freehub Body - ShimanoThe SR Freehub Body - Campagnolo from Prime is a replacement star ratchet free-hub body that is compatible with Shimano/SRAM HG 9/10/11 Speed cassettes and Prime SR1/SR2/SR1D/SR2D Hubs. Features: Replacement star ratchet free-hub body Cassette Compatibility: Shimano/SRAM HG 9/10/11 Speed Prime Hub Compatibility: SR1/SR2/SR1D/SR2D Hubs Genuine Prime replacement partsBuy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.