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Profile Elite Male Cassette / Cinema 888 Rear Custom Wheel - LHD Purple Hub with Black Rim / LHD
  • £459.99

Hand built right here at Sourcebmx. One of the highest spec custom wheels we offer this wheel uses the Profile tried and tested Elite Cassette hub laced into the super strong Cinema 888 rim. This wheel is laced together using high quality straight gauge stainless spokes. ###section### Product Specs WHEEL SIZE:20" HUB:Profile Elite Cassette AXLE:14mm Male DRIVE SIDE:Left Side Drive RIM:Cinema 888 SPOKES:Straight Gauge NIPPLES:Brass WEIGHT:1278g / 2.81lbs

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Theragun PRO Massage Gun Black One Size Foam Rollers
  • £469.00

Advanced Ergonomics The PRO massage gun provides 4 unique arm positions which are engineered to create ideal angles to reach any area of the body. Meanwhile, the patented Theragun Triangle ergonomic handles design allows you to hold the device in several positions while actively reducing strain on your hands, wrists, and arms. Interchangeable Batteries The massage gun comes with 2 rechargeable lithium-ion batteries with 150 minutes of battery life each. This allows you to be charging one battery while the other is in use and continuously swap them for all-day run time. OLED Screen The PRO’s OLED screen puts you in the driver’s seat, allowing you complete control over your recovery routine by conveniently displaying your current speed and responsive force metre. Speed Range The sports massager can also be controlled via the Theragun app via Bluetooth®. The app allows you to customise the speed range of the massage gun – you can select any speed between Theragun’s scientifically calibrated 1750-2400 percussions per minute range. The gun also comes with 5 built-in speeds (17500, 1900, 2200, 2400 percussions per minutes). In the Box Theragun PRO Protective Carrying Case 6 Attachments with Travel Pouch (Supersoft, Dampener, Standard Ball, Wedge, Thumb, Cone) 2 Rechargeable Lithium-Ion Batteries Lithium-Ion Battery Charger Specifications Smart Features: Smart App Integration via Bluetooth®, OLED Screen, Customisable Speed Range, 3 App-Guided Preset Routines Saved on Device Speeds: 5 built-in speeds (1750, 1900, 2100, 2200, 2400 percussions per minute) and app-controlled customisable speed range (any speed between 1750-2400 percussions per minute) Amplitude: 16 millimetres Attachment Compatibility: All 4th Generation attachments Accessory Compatibility: PRO Wireless Charging Stand, Multi-Device Wireless Charger, World Travel Charger Dimensions: 25.5cm x 18cm x 7.6cm Weight: 1.3kg Battery Life: 300 minutes Charge Time: 150 minutes per battery Battery Type: 216V External Lithium-Ion Batteries

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Box One Quantum Cassette Race Hubset Black / 20mm
  • £469.98

For more than seven years, Box Founder Toby Henderson has been trying to build a reliable 20mm, cassette hub without creating a new cassette standard. The problem was fitting durable bearings between the cassette body and the oversize axle. The rear Quantum hub overcomes this by using the type of one piece driver commonly found on freestyle hubs. Each hubset includes a 1 piece, 16 tooth driver supported by 3 large, roller bearings. Inside the driver are 6 pawls, each with 2 teeth that engage a 60 tooth ratchet ring, meaning the hub has just 6° of engagement. The end result is a higher performing hub with fewer dead spots and less drag than others on the market. Quantum front hubs are available only with 20mm axles, but the rears can be easily converted between 10mm, 15mm and 20mm axles. Each set includes a front and rear 20mm set-up. Additional spacers are included. ###section### Product Specs HUB TYPE:Cassette AXLE:20mm DRIVER:16t chromoly SPOKE HOLES:36h WEIGHT:162g/5.7oz (front), 595g /21oz (rear w/o axles)

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Forme Hartington A7 700c 2021 - Hybrid Classic Bike
  • £479.99

The Hartington is a functional yet fashionable bike that offers style and sophistication with a splash of fun. With its classic styling and modern geometry, it’s a bike that doesn’t only just look good but also rides as good as many other bikes in other sectors.Hydro formed alloy frame. Driven by Shimano 7 Speed drive train and rolling on 32H Alloy wheels and Deli tyres. Stopped by powerful Tektro V brakes. Finished with a Forme alloy cockpit.Light weight 6061 alloy frame - Keeping the weight low was the key factor when designing the Hartington for no compromise performance.Comfort saddle and grips -Contact points are the first thing you notice when you sit on a bike. For this reason, we spec ergonomic, comfortable saddles and grips.Ergonomic handlebars-Swept handlebars help achieve a more natural and relaxed riding position.Full length chainguard - Full-length chainguard helps protect any excess clothing from drivetrain oil.

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S&M Passero Signature Whammo V2 Frame Trans Red / 20.75"
  • £489.99

With a shorter back end (12.9"), taller headtube (5") and raised bottom bracket (11.8"), the Whammo V.2 will have you shouting Wham Bam, thank you Man! The taller headtube (ie. less spacers) translates into a cleaner setup, the shorter back end makes it more responsive and the higher bottom bracket improves sprocket clearance when grinding. The rest? Tried and true from the first Whammo. ###section### Product Specs MATERIAL: Chromoly ThermalX Butted Tubing HEAD TUBE ANGLE: 75.3° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 12.9"-13.5" BB HEIGHT: 11.8" WHEEL SIZE: 20" STANDOVER HEIGHT: 8.85" DROPOUT SIZE: 14mm HEADSET TYPE: Integrated BB TYPE: Mid BRAKE MOUNTS: Removable GYRO TABS: NA WEIGHT: 4.65 lb (2.12 kg) ###section### Product Highlights Responsive Geometry with Short Backend and Steep Headtube Great all round frame for all types of riding High-quality Chromoly construction Removable brake hardware (Brake hardware not included) Strong butted tubing ###shogun-image-section###

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Liv Flourish 3 2022 - Hybrid Classic Bike
  • £499.00

Ordinary trips around town are more stylish and fun with the flourish.Easy BreezyThe lightweight ALUXX-Grade Aluminium frame with a classy step-through design makes zipping around town simple.ComfortA suspension seatpost and a cushioned spring seat soften bumpy sidewalks and city roads for a smooth, stable ride.Stylish VersatilityEquipped with a chain cover and integrated fenders on select models, this bike blends urban style with smart, protective features.

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Favero Assioma DUO-Shi Power Meter Power Meter Pedals
  • £524.99
  • RRP £555.00
  • Saving you £5

Whether you're training for an event or trying to beat your personal performance goals, this high-quality power meter is engineered for accuracy and consistency. It features an aerospace aluminium alloy construction, which makes it tough and dependable as you tackle every mile of road. Favero has also ensured that each power sensor is protected by a bi-component resin block that's extremely resistant to shocks and completely waterproof. Another highlight is it's simple to install and move from one bike to another just like your normal pedals. You can do it easily and without extra tools or the need for a mechanic. Dual-Sided Power Measurement Specifically designed for use with Shimano pedal bodies, this model is compatible with Shimano PD-R8000, PD-R7000, PD-6800, PD-R550 and PD-R540. It features power sensors for your right and left pedal to offer real dual-sided power data by measuring power individually for both legs. This makes it possible to observe with accuracy not only Total Power, but also L/R Balance, Torque Effectiveness (TE), Pedal Smoothness (PS), etc. Assioma also guarantees accurate and consistent data in all conditions on the road, and at any temperature ranging from -10°C and 60°C, thanks also to the Automatic Temperature Compensation (ATC).  Unlike others, the measurement of Assioma is not affected by errors related to very irregular pedalling (e.g. uphill sprints) or the use of oval chainrings. This is because Assioma can detect the actual instantaneous angular velocity during the whole pedal stroke, thus providing ±1% accuracy in any conditions. Not only in the lab. Bluetooth and ANT+ Connectivity Assioma communicates with bike computers and smartphones (both Android and iOS) via Bluetooth and ANT+. Assioma is the only pedal-based power meter for road with integrated rechargeable batteries; a single charge ensures at least 50 hours of use. In The Box - Left power sensor with adapter for Shimano® pedal bodies. - Right power sensor with adapter for Shimano® pedal bodies. - Battery charger including plugs (EU, US, UK, AU). - 2 two-meter long micro-USB/USB cables with 2 magnetic connectors. - Hex key and 4 washers for the installation. - Assioma user manual. - Assioma DUO-Shi user manual. Please note: Compatible Shimano pedal bodies are sold separately. (Shimano PD-R8000, PD-R7000, PD-6800, PD-R550 and PD-R540). Additional Item Top Features: - Power sensors for the right and left pedal - Dual-sided power measurement - Cadence sensor: included, inbuilt - Gyroscope: included, inbuilt - Power calculation system: IAV (Instantaneous Angular Velocity-based) - IAV Cycling Dynamics: yes - Oval-chainring compatible: yes - Weight of Assioma DUO-Shi without pedal bodies: 99,0g per side (battery included) - Weight of Assioma DUO-Shi with PD-R8000 pedal body: 157,0g per side (battery included) - Battery type: rechargeable lithium battery - Battery life: at least 50 hours - Radio communication: Bluetooth v4.0, ANT+ PWR profile (CT + PO) - Accuracy power measurement: ± 1% - Temperature compensation: -10°C / +60°C - Waterproofness rating: IP67 - Q-factor with: PD-R7000/R550/R540: +64 mm; PD-R8000/6800: +65 mm - Made in Italy - Manufacturer's Warranty: 2 years Technologies: Designed for the compatibility with Shimano® road Assioma DUO-Shi has been designed for Shimano® road users, as it offers the opportunity to keep on riding with your current Shimano® pedal bodies* without giving up on the trustability and precision of Assioma. Installation into your own Shimano® pedal bodies Installing Assioma DUO-Shi into your own compatible Shimano® pedal bodies* is simple and quick. *Compatible Shimano® pedal bodies Assioma DUO-Shi is compatible with the following Shimano® pedal bodies: PD-R8000, PD-R7000, PD-6800, PD-R550 and PD-R540. **Increased Q-factor? The Q-factor of Assioma Look® version is of +54mm, whereas that of Assioma DUO-Shi measures +64mm with the PD-R7000/R550/R540 pedal bodies and +65mm with the PD-R8000/6800. Despite an initial concern related to the increase of the q-factor, we decided to proceed with the project considering that body size (height, pelvis width, etc.) is a subjective factor contributing to determining which is the best q-factor for each one of us. A final, positive feedback from our beta testers has eventually validated the product. Easy to install Install and move your Assioma from one bike to another just like your normal pedals. You can do it easily and without extra tools or the need for a mechanic. IAV Cycling Dynamics Assioma provides advanced metrics called IAV Cycling Dynamics: IAV Power Phase and IAV Rider Position. These metrics, combined with the classic power data permit you to analyze in detail your pedaling technique and how your position on the bike influences performance. IAV Power and gyroscope Unlike others, the measurement of Assioma is not affected by errors related to very irregular pedaling (e.g. uphill sprints) or the use of oval chainrings. This is because Assioma can detect the actual instantaneous angular velocity during the whole pedal stroke, thus providing ±1% accuracy in any conditions. Not only in the lab. Bluetooth and ANT+ Assioma communicates with bike computers and smartphones (both Android and iOS) via Bluetooth and ANT+. Real dual-sided power data Assioma DUO-Shi measures power individually on both legs; this makes possible to observe with accuracy not only Total Power, but also L/R Balance, Torque Effectiveness (TE), Pedal Smoothness (PS), etc. Accuracy and consistency Assioma guarantees accurate and consistent data in all conditions on the road, and at any temperature ranging from -10°C and 60°C, thanks also to the ATC (Automatic Temperature Compensation). Waterproof and resistant The power sensors are protected by a bi-component resin block, extremely resistant to shocks and completely waterproof. Rechargeable and green Assioma is the only pedal-based power meter for road with integrated rechargeable batteries; a single charge ensures at least 50 hours of use. Tested and guaranteed Favero Electronics produces every power meter in-house and tests each of them thoroughly to fully satisfy the standard required by current regulations. Manufacturer's Part Number: 772-02-S Black/Grey Dual Side Sensor Shimano

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Favero Assioma DUO-Shi Power Meter - Black-Grey - Dual Side Shimano}, Black-Grey
  • £524.99
  • RRP £555.00
  • Saving you £5

Favero Assioma DUO-Shi Power MeterThis high-quality power meter is engineered for accuracy and consistency, whether you're training for an event or trying to beat your personal performance goals. It features an aerospace aluminium alloy construction, which makes it tough and dependable as you tackle every mile of road. Favero has also ensured that each power sensor is protected by a bi-component resin block that's extremely resistant to shocks and completely waterproof. Another highlight is it's simple to install and move from one bike to another just like your normal pedals. You can do it easily and without extra tools or the need for a mechanic.Dual-Sided Power MeasurementSpecifically designed for use with Shimano pedal bodies, this model is compatible with Shimano PD-R8000, PD-R7000, PD-6800, PD-R550 and PD-R540. It features power sensors for your right and left pedal to offer real dual-sided power data by measuring power individually for both legs. This makes it possible to observe with accuracy not only Total Power, but also L/R Balance, Torque Effectiveness (TE), Pedal Smoothness (PS), etc. Assioma also guarantees accurate and consistent data in all conditions on the road, and at any temperature ranging from -10°C and 60°C, thanks also to the Automatic Temperature Compensation (ATC).Unlike others, the measurement of Assioma is not affected by errors related to very irregular pedalling (e.g. uphill sprints) or the use of oval chainrings. This is because Assioma can detect the actual instantaneous angular velocity during the whole pedal stroke, thus providing ±1% accuracy in any conditions. Not only in the lab.Bluetooth and ANT+ ConnectivityAssioma communicates with bike computers and smartphones (both Android and iOS) via Bluetooth and ANT+. Assioma is the only pedal-based power meter for road with integrated rechargeable batteries; a single charge ensures at least 50 hours of use.Please note: Compatible Shimano pedal bodies are sold separately. (Shimano PD-R8000, PD-R7000, PD-6800, PD-R550 and PD-R540).Features: Material: Aerospace Aluminium Alloy Use: Road Power Meter Type: Power sensors for right and left Shimano pedal bodies Power Measurement: Dual-sided power measurement Compatible Pedal Bodies: Shimano PD-R8000, PD-R7000, PD-6800, PD-R550 and PD-R540 Cadence Sensor: Included, inbuilt Gyroscope: Included, inbuilt Power Calculation System: Power calculation system IAV Cycling Dynamics: Yes Oval-Chainring Compatible: Yes Battery Type: Rechargeable lithium battery Battery Life: At least 50 hours Radio Communication: Bluetooth v4.0, ANT+ PWR profile (CT + PO) Accuracy Power Measurement: ± 1% Temperature Compensation: -10°C / +60°C Waterproofness Rating: IP67 Q-factor With: PD-R7000/R550/R540: +64 mm; PD-R8000/6800: +65 mm Manufacturer's Warranty: 2 years Pedal Bodies Included: No, sold separately Single or Pair: Pair Made in Italy Weight of Assioma DUO-Shi without Pedal Bodies: 99g per side (battery included) Weight of Assioma DUO-Shi with PD-R8000 Pedal Body: 157g per side (battery included)In The Box: Left power sensor with adapter for Shimano pedal bodies. Right power sensor with adapter for Shimano pedal bodies. Battery charger including plugs (EU, US, UK, AU). 2 two-meter long micro-USB/USB cables with 2 magnetic connectors. Hex key and 4 washers for the installation. Assioma user manual. Assioma DUO-Shi user manual.Technologies: Designed for the compatibility with Shimano road: Assioma DUO-Shi has been designed for Shimano road users, as it offers the opportunity to keep on riding with your current Shimano pedal bodies* without giving up on the trustability and precision of Assioma. Installation into your own Shimano pedal bodies: Installing Assioma DUO-Shi into your own compatible Shimano pedal bodies* is simple and quick. Compatible Shimano pedal bodies: Assioma DUO-Shi is compatible with the following Shimano pedal bodies: PD-R8000, PD-R7000, PD-6800, PD-R550 and PD-R540. Increased Q-factor?: The Q-factor of Assioma Look version is of +54mm, whereas that of Assioma DUO-Shi measures +64mm with the PD-R7000/R550/R540 pedal bodies and +65mm with the PD-R8000/6800. Despite an initial concern related to the increase of the q-factor, we decided to proceed with the project considering that body size (height, pelvis width, etc.) is a subjective factor contributing to determining which is the best q-factor for each one of us. A final, positive feedback from our beta testers has eventually validated the product. Easy to install: Install and move your Assioma from one bike to another just like your normal pedals. You can do it easily and without extra tools or the need for a mechanic. IAV Cycling Dynamics: Assioma provides advanced metrics called IAV Cycling Dynamics: IAV Power Phase and IAV Rider Position. These metrics, combined with the classic power data permit you to analyze in detail your pedaling technique and how your position on the bike influences performance. IAV Power and gyroscope: Unlike others, the measurement of Assioma is not affected by errors related to very irregular pedaling (e.g. uphill sprints) or the use of oval chainrings. This is because Assioma can detect the actual instantaneous angular velocity during the whole pedal stroke, thus providing ±1% accuracy in any conditions. Not only in the lab. Bluetooth and ANT+: Assioma communicates with bike computers and smartphones (both Android and iOS) via Bluetooth and ANT+. Real dual-sided power data: Assioma DUO-Shi measures power individually on both legs; this makes possible to observe with accuracy not only Total Power, but also L/R Balance, Torque Effectiveness (TE), Pedal Smoothness (PS), etc. Accuracy and consistency: Assioma guarantees accurate and consistent data in all conditions on the road, and at any temperature ranging from -10°C and 60°C, thanks also to the ATC (Automatic Temperature Compensation). Waterproof and resistant: The power sensors are protected by a bi-component resin block, extremely resistant to shocks and completely waterproof. Rechargeable and green: Assioma is the only pedal-based power meter for road with integrated rechargeable batteries; a single charge ensures at least 50 hours of use. Tested and guaranteed: Favero Electronics produces every power meter in-house and tests each of them thoroughly to fully satisfy the standard required by current regulations.Manufacturer's Part Number: 772-02-S Black/Grey Dual Side Sensor ShimanoBuy Favero Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Profile Elite Male Cassette / Cinema 888 /Titanium Spokes Custom Wheel - RHD Red Hub with Black Rim / RHD
  • £544.99

The most Extravagant Wheel options we could create are now available as an instant custom! This wheel consists of a Profile Elite Male rear hub with Optional Titanium axle upgrade & Titanium Driver upgrade. Laced onto a Cinema 888 rim using Titanium Source BMX spokes with Brass nipples. The Titanium Driver/Axle options will need to be Added to your basket as this will affect your total price. The Weight saving on this wheel when using all of the Titanium spokes & hub upgrades works out roughly 200grams / 7.05oz lighter than standard chromoly."Hand built right here at Sourcebmx. This custom rear BMX wheel uses the tried and tested Profile Mini cassette hub in polished laced into a BSD NASA rim using high quality double butted rainbow spokes. NOTE: Please confirm the size of your driver at Checkout. Titanium driver and axle upgrades also available at checkout.###section### Product Specs WHEEL SIZE: 20" HUB: Profile Elite Cassette AXLE: 14mm Male DRIVE SIDE: Right Side Drive RIM: Cinema 888 SPOKES: Titanium NIPPLES: Brass WEIGHT: 1202g / 2.64lbs

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Profile Elite Male Cassette / Cinema 888 /Titanium Spokes Custom Wheel - LHD Purple Hub with Black Rim / LHD
  • £544.99

The most Extravagant Wheel options we could create are now available as an instant custom! This wheel consists of a Profile Elite Male rear hub with Optional Titanium axle upgrade & Titanium Driver upgrade. Laced onto a Cinema 888 rim using Titanium Source BMX spokes with Brass nipples. The Titanium Driver/Axle options will need to be Added to your basket as this will affect your total price. The Weight saving on this wheel when using all of the Titanium spokes & hub upgrades works out roughly 200grams / 7.05oz lighter than standard chromoly."Hand built right here at Sourcebmx. This custom rear BMX wheel uses the tried and tested Profile Mini cassette hub in polished laced into a BSD NASA rim using high quality double butted rainbow spokes. NOTE: Please confirm the size of your driver at Checkout. Titanium driver and axle upgrades also available at checkout.###section### Product Specs WHEEL SIZE: 20" HUB: Profile Elite Cassette AXLE: 14mm Male DRIVE SIDE: Left Side Drive RIM: Cinema 888 SPOKES: Titanium NIPPLES: Brass WEIGHT: 1202g / 2.64lbs

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Quarq DFOUR Road Powermeter Chassis Power Meter Cranksets
  • £574.99

Ready for training, this road bike powermeter is equipped with two high-quality carbon crank arms that ensure fantastic stiffness, durability and low weight as you aim to beat your personal performance goals. Quarq has also designed this chassis-only version for compatibility with Shimano Dura-Ace R9100 or Ultegra R8000 chainrings for excellent power delivery and precision on your ride. Thanks to its spider powermeter, this model provides riders with accuracy within 1.5%, measuring both legs for reliable, accurate power analysis. Another highlight is it comes complete with many of Quarq's renowned technologies such as MagicZero, AxCad and OmniCal as well as 10K Temperature Compensation and an IPX7 waterproof rating for reliability and consistency in any weather conditions.  Bluetooth and ANT+ Compatible Your riding and training efforts deserve power measurement that reaches the highest standards of accuracy to help you reach personal records. Because without accurate data, you can’t know if you are making the progress you’re aiming for. With Quarq’s DFour power measurement technology that uses Bluetooth and ANT+ connectivity, you’ll have the technology to get real results.  Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The Quarq DFour DUB Power Meter is paired with the Quarq DUB Crankarms to pair with your Dura-Ace R9100 or Ultegra R8000 chainrings. A SRAM DUB Bottom Bracket will be required for installation (available separately). Additional Item Top Features: Connectivity: Bluetooth or ANT+ Battery: CR2032 Battery Life: 200-hour battery life, change without tools Waterproof Rating: IPX7 Accuracy: Within 1.5%, measuring both legs Compatible Chainrings: Shimano Dura-Ace R9100 or Ultegra R8000 road chainrings Chainrings Included: No Technologies: DUB: The relationship between bottom bracket spindle and bearing is the core of DUB technology. It’s where stiffness meets durability. Quarq took it a step beyond conventional thinking and made everything simpler—better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this approach to developing a complete system that equals better drivetrain performance.  Connectivity: Bluetooth low energy technology and ANT+ wireless data transfer. MagicZero: Automatically checks and recalibrates your power meter as you ride – no need to manually calibrate. AxCad: No cadence magnet required. Battery: CR2032, 200-hour battery life, change without tools. OmniCal: Swap chainrings without affecting accuracy. Accuracy: Within 1.5%, measuring both legs. 10K Temperature Compensation. IPX7 waterproof rating. Manufacturer's Part Number: 00.3018.292.170 Black 170mm 00.3018.292.172 Black 172.5mm  00.3018.292.175 Black 175mm 

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Quarq DFOUR Road Power Meter Chassis - Black - 110mm}, Black
  • £574.99

Quarq DFOUR Road Power Meter ChassisThis road bike powermeter features two high-quality carbon crank arms that ensure fantastic stiffness, durability and low weight as you smash your personal performance goals. Quarq has also designed this chassis-only version for compatibility with Shimano Dura-Ace R9100 or Ultegra R8000 chainrings for excellent power delivery and precision on your ride. Thanks to its spider powermeter, this model provides riders with accuracy within 1.5%, measuring both legs for reliable, accurate power analysis. Another highlight is it comes complete with many of Quarq's renowned technologies such as MagicZero, AxCad and OmniCal as well as 10K Temperature Compensation and an IPX7 waterproof rating for reliability and consistency in any weather conditions.Bluetooth and ANT+ CompatibleYour riding and training efforts deserve power measurement that reaches the highest standards of accuracy to help you reach personal records. Because without accurate data, you can't know if you are making the progress you're aiming for. With Quarq's DFour power measurement technology that uses Bluetooth and ANT+ connectivity, you'll have the technology to get real results. Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The Quarq DFour DUB Power Meter is paired with the Quarq DUB Crankarms to pair with your Dura-Ace R9100 or Ultegra R8000 chainrings. A SRAM DUB Bottom Bracket will be required for installation (available separately). Features: Crank Arm Material: Carbon Use: Road Power Meter Type: Spider BCD: 110 Speed: 11 speed BB Spindle Interface: DUB BB Compatibility: All SRAM Road DUB bottom brackets Bottom Bracket Included: No, available separately Guard: No guard Connectivity: Bluetooth or ANT+ Battery: CR2032 Battery Life: 200-hour battery life, change without tools Waterproof Rating: IPX7 Accuracy: Within 1.5%, measuring both legs Compatible Chainrings: Shimano Dura-Ace R9100 or Ultegra R8000 road chainrings Chainrings Included: NoTechnologies: DUB: The relationship between bottom bracket spindle and bearing is the core of DUB technology. It's where stiffness meets durability. Quarq took it a step beyond conventional thinking and made everything simpler—better integrating the relationship between chainring, crank, spindle and bottom bracket. It's this approach to developing a complete system that equals better drivetrain performance. Connectivity: Bluetooth low energy technology and ANT+ wireless data transfer. MagicZero: Automatically checks and recalibrates your power meter as you ride - no need to manually calibrate. AxCad: No cadence magnet required. Battery: CR2032, 200-hour battery life, change without tools. OmniCal: Swap chainrings without affecting accuracy. Accuracy: Within 1.5%, measuring both legs. 10K Temperature Compensation. IPX7 waterproof rating.Manufacturer's Part Numbers: 00.3018.292.170 Black 170mm 00.3018.292.172 Black 172.5mm 00.3018.292.175 Black 175mm Buy Quarq Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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