Product Features

Explanation

 Shimano ULTEGRA FC-R8100 2x12-Speed ​​Crankshaft: The Smart Investment for Professional Performance! ⚙️💎

Bringing the legendary performance of DURA-ACE to a more accessible level, The new address for perfectionism: Shimano ULTEGRA FC-R8100 2x12-Speed ​​Crankset. This crank is for top-level road cyclists. best price/performance ratio In doing so, it inherits almost all of the DURA-ACE technologies, such as Hollowtech II and Hollowglide. 52/36T with its gear ratio, suitable for both racing and endurance riding. a perfect balance promises.


🎯 WHO IS IT FOR? SMART CYCLISTS WHO VALUE PERFORMANCE!

  • 🥈 Amateur and Club Drivers Taking the Race Seriously: For those who want excellent performance at a much more affordable price than DURA-ACE.

  • 🏔️ Endurance Drivers (Gran Fondo, Century): Those seeking reliability, lightness, and efficiency over long distances.

  • ⚡ Performance-Oriented Hobby Drivers: For those who consider their bike a serious piece of sports equipment and want the best components.

  • 🔬 For Technology Enthusiasts: For those who want to experience the latest 12-speed technology but have a limited budget.

  • 📈 For those who want to invest in the future: Those looking to upgrade to a 12-speed system and secure a solid foundation that will last for many years.


⚙️ THE LEGACY OF QUALITY: PROXIMITY TO DURA-ACE TECHNOLOGY

Technology Status of FC-R8100 The Advantage It Provides You
🕳️ HOLLOWTECH II Same Technology. Hollow aluminum connecting rods and integrated steel axle. Excellent balance of rigidity and weight. Power transfer efficiency very close to DURA-ACE.
🌀 HOLLOWGLIDE Same Technology. The outer (52T) female connector has a carbon-reinforced hollow structure. Fast, precise, and silent front gear changes. Lighter and more rigid gears.
🎯 4-ARM DESIGN The same design philosophy. Iconic Shimano aesthetics and robust construction.
⚡ HYPERGLIDE+ COMPATIBLE Yes. The tooth shape is perfectly compatible with Hyperglide+ chains. Smooth and fast gear changes , especially under high load.

📐 TECHNICAL SPECIFICATIONS & COMPATIBILITY

  • 🚴 Usage: Road Bike – Race, endurance, performance.

  • 🏷️ Group: ULTEGRA R8100 (12-Speed)

  • 🦷 Gear Ratio: 52-36T (Versatile, ideal "semi-professional" ratio for racing and speed)

  • 🔩 Gear Depth (PCD): 110mm

  • 📏 Q-Factor: 146mm (same as DURA-ACE)

  • ⛓️ Chain Line: 43.5mm (same as DURA-ACE)

  • 🦵 Crank Arm Length: 160, 165, 170, 172.5, 175mm (At 160mm, it's also suitable for shorter riders!)

  • 🏗️ Ingredients: Crankshaft: Aluminum (Anodized) / Axle: Steel / 52T Gearbox: Aluminum + Carbon (CFRP)

  • ⚖️ Weight (52-36T, 170mm): ~711 grams (Bearing not included). From DURA-ACE only. ~3 grams extra!

  • 🚨 CRITICAL WARNING: The bearing (bottom bracket) is NOT included in the box! Also must be purchased:

    • For Threaded Housings: SM-BBR60

    • For Press-Fit Bodies: SM-BB72-41B


⚠️ COMPATIBILITY & SELECTION CRITERIA

  1. 🔌 GEAR SHIFT COMPATIBILITY: This crank ONLY the following 12-speed electronic (Di2) It works with front derailleurs:

    • ULTEGRA FD-R8150 (Natural mating)

    • DURA-ACE FD-R9250 (Also compatible with the higher-end model)

    • * With mechanical shifters or 11-speed groupsets Not compatible.

  2. ⛓️ CHAIN ​​COMPATIBILITY: Shimano 12-speed chains It must be used with (CN-M9100, M8100, M7100, M6100). CN-M8100 recommended.

  3. 🔄 52/36T vs 50/34T: WHICH ONE IS RIGHT FOR YOU?

    • 52/36T (COMPACT): Suitable for flat and undulating courses, racing, and those who want a high average speed. Also suitable for gentle climbs.

    • 50/34T (SUPER-COMPACT): Mountain trails, more comfortable riding, steep climbs. Ideal for endurance riders.

  4. 🔧 ASSEMBLY: It must be installed by a professional technical service using the correct tools and torque values.


🆚 ULTEGRA FC-R8100 vs DURA-ACE FC-R9200: WHAT'S THE REAL DIFFERENCE?

The main difference It's about material processing, tolerances, and a few grams of weight. The performance difference is around 1-2% and is imperceptible to most drivers.

  • ✅ CHOOSE ULTEGRA: If best price/performance And if you want 98% of DURA-ACE technology.

  • ✅ CHOOSE DURA-ACE: If absolute lightest, most rigid And if being "the best" is a psychological advantage, then so be it, if you have the budget.


📦 PACKAGE INCLUDED

  • 1x Shimano ULTEGRA FC-R8100 Crankset (52T & 36T sprockets, available in selected crankset length)

  • Crankshaft covers and fixing screws

  • (BEARING, WRENCH SET AND ASSEMBLY TOOLS ARE NOT INCLUDED!)


 WHY ULTEGRA FC-R8100? 5 SMART REASONS

  1. 💰 SUPERIOR VALUE: Very similar in performance to DURA-ACE, but at a much more affordable price.

  2. ⚙️ THE SAME HIGH-LEVEL TECHNOLOGY: Hollowtech II and Hollowglide are right here.

  3. 🔄 PERFECT GEAR RATIO OPTION: Available in 52/36T and 50/34T sizes to suit every need.

  4. 📏 WIDE RANGE OF SLEEVE LENGTHS: Suitable for all body sizes from 160mm to 175mm.

  5. 🔋 POWER METER COMPATIBILITY: Upgrade option to the FC-R8100-P model.


🏁 FINAL WORD: SPEED AND SMART COMBINED BRING SUCCESS!

The Shimano ULTEGRA FC-R8100 is one of the most sensible high-performance investments a smart cyclist can make. It's built to give you an edge in races, keep you entertained on long rides, and provide years of trouble-free service. If you don't need the prestige of DURA-ACE but can't compromise on performance, ULTEGRA is the right choice.

Don't question the performance, question the price tag. A smart choice will get you there faster.

🛒 Contact us for professional installation and compatibility advice. Make this smart investment with confidence.

100% Originality Guarantee

All our products are 100% original and are offered with quality and assurance. As Uğur Bicycle, we only deliver products that we procure from reliable and authorized suppliers and that we distribute ourselves. Shop with peace of mind, pedal to quality!

Free Shipping and Free Returns

Frequently Asked Questions

📌 When will my order be shipped?

Your orders will be delivered to cargo within 1-2 business days . This period may vary depending on the density during campaign periods.

📌 Which Cargo Company Do You Work With?

Shipments are made within Türkiye with Domestic Cargo. International shipments are sent with any of the companies DHL - FEDEX - TNT.

📌 How can I track my order?

When your order is shipped, the tracking number is shared via e-mail and SMS. You can track your order on the cargo company's website with this number.

📌 How can I return and exchange a product?

You can return the products within 14 days , unused and in their original packaging. You can review our return policy for detailed return procedures.

📌 When will I be refunded for the product I returned?

Once your return is approved, your payment will be refunded within 3-7 business days , depending on the payment method you used.

📌 Do your products have a warranty?

Yes! All products on sale are under manufacturer or distributor warranty . You can check the product descriptions for warranty period and conditions.

Didn't find your answer?

Do not hesitate to contact us.