Description: 4iiii PRECISION 3+ PRO Shimano Ultegra R8100 Dual-Sided CranksetThe 4iiii PRECISION 3+ PRO Shimano Ultegra R8100 Dual-Sided Crankset combines 4iiii’s 3-D tri-axial strain gauge technology with Shimano’s latest Ultegra R8100 crank. The result is an accurate, lightweight and highly reliable power meter crankset that is accurate to +/- 1.0%.In addition, this dual-sided 4iiii R8100 power meter crankset features independent left/right power measurement. With a power sensor located on the inside of both crank arms, the power meter can measure power from each leg individually.The 4iiii is extremely lightweight, adding approximately 20 grams to the Shimano R8100 crankset. It is compatible with both ANT+ and Bluetooth SMART devices, which means you can use it with any bike computer, smart phone or indoor training app. It also comes with a full 3-year warranty. Key Product DetailsCompatibility:This power meter is compatible with 2×12 road drivetrains and 24 mm Shimano bottom brackets. Most customers that buy it already have a Shimano R8100 crankset on their bike and therefore, it’s an easy swap. However, it can be used on any road bike as long as its 2×12 with a 24 mm bottom bracket.Power Measurement:This 4iiii power meter has a power sensor on both crank arms and measures power from both legs. It is also able to measure your left vs. right leg power.New 4iiii R8100 Dual-Sided PRECISION 3+!The all new 4iiii R8100 Dual-Sided PRECISION 3+ power meter features the following improvements over the version 2:Apple Find My which allows you to always know where your bike is!550 hours of battery life – the longest coin cell battery life in a power meter on the market!Sleeker, slimmer profile making most incompatibility issues a thing of the past.Stronger antenna for even better connectivity.Indicator light for battery life, successful zero-offset and when the unit has been turned on.Key Features:Dual-leg power measurement, can measure left vs. right leg power, accurate to within +/- 1.0%, lightweight at only 20 grams of added weight, 550 hours of battery life, CR2032 user-replaceable battery, ANT+ and Bluetooth compatible, 3-year warranty. Advice From Our Staff:This is a great option for customers with a Shimano R8100 drivetrain that want to keep an OEM R8100 crankset on their bike but add power. We also like that fact that this crankset measures power from both legs and has a 3-year warranty, which is longer than most power meters. Options For This Power MeterChainrings: 50/34 | 52/36Crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm CompatibilityBottom Bracket: This power meter is compatible with 2x12 road drivetrains and 24 mm Shimano bottom brackets. Most customers that buy it already have a Shimano R8100 crankset on their bike and therefore, it's an easy swap. However, it can be used on any road bike as long as its 2x12 with a 24 mm bottom bracket.Check Frame Clearance: Crank-arm based power meters like this one attach a sensor on the inside of the left crank arm. On some bikes, there is not enough room between the left crank arm and the chainstay for the sensor to clear the frame. Therefore, you should make sure you have at least 10 mm of clearance between the left crank arm and the chainstay - and that you don't have a bottom bracket mounted rear brake (used on some aero and TT bikes). The important area to measure is right in the middle of the crank arm. Please refer to the image below.If you find that you have around 7-9 mm of clearance, what many people will do is simply install a 1 or 2 mm bottom bracket spacer (between the left crank arm and the frame), which will give them the clearance they need.In the Box4iiii Dual-Sided Power Meter Crankset2 CR2032 coin cell batteries SpecsName4iiii PRECISION 3+ PRO R8100Bike TypeRoadLocation of Power MeasurementCrank armLeft or Both Legs MeasuredBothIndependent Left/Right MeasurementYesInstallationMore involved (60 min. estimated)Crank Arm MaterialAluminumCommunication ProtocolANT+ and Bluetooth SMARTClaimed Accuracy+/- 1.0%Active Temperature CompensationYesWeight736 grams (170 mm, 50-34T)Battery TypeCR2032Battery Life550 hoursMethod of Cadence MeasurementAccelerometerBCD110 4-bolt asymmetricSpindle Size24 mmQ Factor148 mmWarranty3 years Why Buy from Power Meter City1. We ship fast! All orders ship on the same day your order is placed!2. Free shipping on all orders in the U.S.3. We are an authorized 4iiii dealer and this product comes with a full warranty.4. Expert advice and customer service in case you need any help. About our CompanyAt Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service.We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.
Price: 949.99 USD
Location: Aliso Viejo, California
End Time: 2024-11-17T21:54:26.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Power Source: Batteries
Color: Black
Indoor/Outdoor: Indoor/Outdoor
Material: Aluminum
MPN: Does Not Apply
Brand: 4iiii Innovations
Type: Crankset
Accuracy: 1%
Measurement Provided: Dual-Sided
Manufacturer Warranty: 3 years
Model: PRECISION 3+ Ultegra R8100
Features: Bluetooth SMART, ANT+, Cadence, Downloadable, Power
Sport/Activity: Cycling
Available Variations
Color: 165 mm
Price: 949.99 USD
Available Quantity: 0
Quantity Sold: 0
Color: 170 mm
Price: 949.99 USD
Available Quantity: 2
Quantity Sold: 1
Color: 172.5 mm
Price: 949.99 USD
Available Quantity: 2
Quantity Sold: 1
Color: 175 mm
Price: 949.99 USD
Available Quantity: 2
Quantity Sold: 0
Color: 165 mm
Price: 949.99 USD
Available Quantity: 0
Quantity Sold: 0
Color: 170 mm
Price: 949.99 USD
Available Quantity: 1
Quantity Sold: 0
Color: 172.5 mm
Price: 949.99 USD
Available Quantity: 1
Quantity Sold: 0
Color: 175 mm
Price: 949.99 USD
Available Quantity: 1
Quantity Sold: 0
