This inner chainring is suitable for use on 130mm BCD cranks and the 39t size is usually matched with a 52t or 53t outer chainring.
Ready for long days on the mountain bike (MTB) trails, this Shimano 12 speed quick link features a reliable Sil-tec surface treatment which provides ultra-low friction and superior longevity in all-weather conditions. Designed to be quick and simple to install, this is a perfect choice of upgrade for riders who want a tough component when dominating on some of the most aggressive trails. Technologies: Sil-Tec: Shimano’s ultra-low friction surface treatment. Superior to simple coating, SIL-TEC is an advanced plating process that improves system performance through the use of embedded fluorine particles. SIL-TEC products run smoother and wear longer in all conditions. Hyperglide+: Improved chain retention encourages more aggressive all-terrain riding and relieves chain-issue anxiety. Smoother drivetrain transmission and enhanced shifting performance sharpens riders’ concentration and improves acceleration. Better chain engagement cuts abrasion, reduces maintenance, and lengthens the lifespan of the chain.
This rigid and lightweight model delivers a smooth driving experience as you weave your way around the trails, even when riding over rowdy terrain conditions. Its 36 to 26 tooth ratio provides an extra wide range for more simple gearing than racing groupsets. Furthermore, its forged aluminium crank arm construction and steel inner chainring deliver a top-level strength to weight set-up. This is the perfect choice of upgrade for completing your dream bike build and getting the best performance out of every off-road adventure. Technologies: Hollowtech II: Providing the best balance of stiffness, strength, weight and rotating performance. The concept of Hollowtech II technology is focused on producing a superior crankset which will maximise a rider’s power transfer. The rigidity of the crankset ensures pedalling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. Hollowtech technology is an ultra-lightweight hollow crankarm created by Shimano with the company’s own proprietary forging technology that also maintains rigidity. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer. The Hollowtech II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design. Moreover, Hollowtech II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.
This crankset features a tough aluminium crank arm material with a steel axle, making it ideal at handling the increased pressure from fitness riding and longer journeys. It offers fast and responsive indexed shifting as you travel from the smooth city pavement to the countryside. One final highlight is this model's 2-piece crank design that offers increased rigidity and less weight. Item Top Features Continued: Chainline: 43.5mm Chain Ring Combination: 50, 39 and 30T Compatible BB Type: Outboard Compatible Chain: HG 9 speed Crank Arm Length: Multiple options available to select Gear Arms: 4 Chain Guard / Bash Guard: Sold separately BCD: 110/74mm Recommended Bottom Bracket: Pressfit: BB-RS500-PB; Threaded (Normal): BB-RS500 Q-Factor: 158.8mm Part Numbers: 170mm: FCR3030C090; 165mm: FCR3030A090 and 175mm: FCR3030E090 Weight: 1180g (without bottom bracket) Technologies: 2-Piece Crankset: Integrated crank arm and bottom bracket. Increased rigidity with less weight. Wider bearing positioning. Rigidity is enhanced and pedalling force is efficiently transmitted. Precision Bearings. Low maintenance and simplified installation. HG HyperGlide Compatible: The distinctively designed HYPERGLIDE sprockets incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. The HG cassette sprocket, which was developed for the MTB 10-speed system, underwent comprehensive optimization to achieve super-highly efficient shifting.
Lightweight and durable chainrings.
Ready to deliver crisp, reliable performance on E-MTBs, this Shimano electric bike chainring has the extra strength and rigidity that's needed for the higher torque that E-Bikes deliver through the drivetrain.
This on/off switch is specifically engineered for use with Shimano STEPs E-bikes. It features a compact, semi-integrated frame charging port and can be updated via the E-Tube project application. - Compact, semi-integrated frame charging port - Minimum frame open hole - Connector connection same as EW-SD50 Technologies: E-Tube: The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and SHIMANO STEPS components with a PC, tablet or smart phone. Wirelessly customize functions like SHIMANO SYNCHRONIZED SHIFT over Bluetooth® while out on a ride. Automatically checks for firmware updates on each startup to ensure all components are running the latest version. PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process. Beautiful visualization of your real-time SHIMANO STEPS riding data on your smartphone. Advanced all-weather design resists rusting, stretching, and freezing.
With a disc brake pad adapter that retains the brake pads when the disc is removed, this excellent tool makes vital maintenance work on your wheel a little easier. Please Note: For the 135mm MTB option, the product may be delivered with either a blue or a red coloured chain guide wheel.
Also compatible with 11-speed chains and Campagnolo up to 10-speed, the BTL05 will easily adjust to the size of your chain to give an accurate cut every time. Constructed of a toughened, durable steel, your work is made more comfortable with its bright blue rubber grip and comes bundled with a spare pin, providing you with everything you need to get your chain back up to speed.
Proven reliable and hard-wearing over many years.
Includes 5 and 6mm Allen wrenches, and a Chain Hook.