{"product_id":"4iiii-precision-3-plus-power-meter-shimano-105-r7100","title":"4iiii Precision 3+ Non-Drive Side Power Meter - Shimano 105 R7100 (Black)","description":"\u003cp style=\"text-align:center;font-style:italic;font-size:18px;border:1px solid #ddd;background:#f7f7f7;padding:16px;\"\u003eA ride-ready power meter pre-installed on a genuine Shimano crank arm — accurate, long-lasting, and simple to fit straight onto your existing 105 R7100 crankset.\u003c\/p\u003e\n\n\u003ch5\u003eOverview\u003c\/h5\u003e\n\u003cp\u003eThe Precision 3+ gives you real power data without the cost or hassle of replacing a whole crankset — it ships pre-installed on a genuine Shimano 105 R7100 left crank arm, so fitting it is as simple as swapping your existing arm. A trio of strain gauges reads the changes in your pedal stroke output through the full rotation, a feature most left-side-only power meters skip, and the whole unit has been third-party tested to a verified ±1% accuracy.\u003c\/p\u003e\n\u003cp\u003eAt just 9 grams and 5.5mm thick, the sensor pod adds almost nothing to the crank and stays well clear of your frame and heel. With up to 800 hours of battery life from a single CR2032 coin cell, you're looking at maybe one battery change a year rather than a running maintenance chore.\u003c\/p\u003e\n\u003cp\u003eIt measures your left leg's power output and doubles it to estimate total watts — the standard, well-proven approach for single-sided power meters, and a genuinely reliable way to start training with real numbers rather than perceived effort alone.\u003c\/p\u003e\n\n\u003ch5\u003eWhy You'll Like It\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e±1% third-party verified accuracy\u003c\/strong\u003e\u003cbr\u003eGenuinely reliable numbers you can actually train and pace by, not just a rough estimate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUp to 800 hours of battery life\u003c\/strong\u003e\u003cbr\u003eA single CR2032 coin cell lasts the better part of a year of regular riding before needing a swap.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDual ANT+ and Bluetooth connectivity\u003c\/strong\u003e\u003cbr\u003ePairs with your head unit and training app simultaneously, with no mode-switching required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApple Find My integration\u003c\/strong\u003e\u003cbr\u003eGenuine peace of mind if your bike ever goes missing — you can track the power meter's location directly.\u003c\/p\u003e\n\n\u003ch5\u003eWho Is It For?\u003c\/h5\u003e\n\u003cp\u003eThis suits riders on a Shimano 105 R7100 crankset who want to start training and racing with real power data, without the cost of a full power-meter crankset replacement. It's a straightforward, budget-conscious entry point into structured, power-based training.\u003c\/p\u003e\n\u003cp\u003eFor BOTS customers building a first power-based training plan, this is a genuinely accessible way to get accurate numbers without committing to a premium dual-sided system.\u003c\/p\u003e\n\n\u003ch5\u003eGood to Know\u003c\/h5\u003e\n\u003cp\u003eThis is a left-side (non-drive side), single-sided power meter — it measures left-leg power and doubles it, rather than reading each leg independently. Have your BOTS mechanic confirm your existing crank arm length and bottom bracket compatibility before fitting.\u003c\/p\u003e\n\n\u003ch5\u003eTechnical Specifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility\u003c\/strong\u003e: Shimano 105 R7100 crankset (Hollowtech II interface)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Point\u003c\/strong\u003e: Crank arm (non-drive\/left side)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity\u003c\/strong\u003e: ANT+ and Bluetooth Smart (dual, simultaneous)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Transfer\u003c\/strong\u003e: Power, cadence\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: ±1% (third-party verified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Range\u003c\/strong\u003e: 0–4,000W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCadence Range\u003c\/strong\u003e: 30–170rpm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Life\u003c\/strong\u003e: Up to 800 hours (CR2032 coin cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Rating\u003c\/strong\u003e: IPX7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdded Weight\u003c\/strong\u003e: 9g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank Length\u003c\/strong\u003e: 170mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: China\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImported By\u003c\/strong\u003e: Ensign Sports IGL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Quantity\u003c\/strong\u003e: 1N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer Care Address\u003c\/strong\u003e: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: support@bumsonthesaddle.com\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommodity\u003c\/strong\u003e: Power Meters\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ensign Sports IGL","offers":[{"title":"170mm","offer_id":50479571402921,"sku":"PML300-S23B00X","price":36900.0,"currency_code":"INR","in_stock":true}],"url":"https:\/\/bumsonthesaddle.com\/products\/4iiii-precision-3-plus-power-meter-shimano-105-r7100","provider":"BUMSONTHESADDLE","version":"1.0","type":"link"}