Felt Triathlon Race Bike | B Performance Ultegra

Legends Never Die. They Evolve.
The B is one of the most legendary badges in triathlon history and has long reigned as a symbol of the blood, sweat, and tears shed by the most devoted triathletes, and the dedication put into every single one of our bikes. The latest iteration of the B is ready for action, featuring an updated frame design gleaned from decades of designing the most aerodynamic bikes on earth and a lightweight carbon fiber construction. Whether you're just starting your journey into the world of triathlon or a multi-sport veteran, say hello to the B.

B | Performance | Ultegra
With a carbon frame designed with aero efficiency, the B features a finely curated selection of components that offers performance, convenience, and value.

• Shimano mechanical drivetrain
• Rim brakes
• Tubeless-compatible aluminum wheels

B Features

Triathlon-Specific Design
The B takes design cues from our top-of-the-line IA and the legendary DA frame kit. It has been ridden to several triathlon world championships and countless international accolades in road bike time trials. These include an aerodynamically optimized, oversized downtube and seat tube, with each sporting unique wheel cutouts to improve aero efficiency further while ensuring a refined geometry for stable ride quality and precise handling. The bike's incredible fit adjustability is made possible using a standard road-style stem paired with our famous Bayonet base bar and a unique angled carbon Seatpost. Every triathlete can find their most comfortable and powerful riding position.

Aerodynamics
Every racecourse is different, with varying elevation gains, road curvature, and, of course, an endless variety of wind in terms of velocity and direction. Our methodology for creating every race bike involves rigorous simulated modeling, wind tunnel testing, and real-world riding of prototypes. Countless new designs are scrutinized, updated, and tested again. In the case of the B, our engineers hit upon a bike inspired by the world championship-winning IA and capable of carrying on the iconic B marque.

Performance Carbon Fiber
Not all carbon fiber race bikes are created equal. Sure, there are countless types, grades, and qualities of carbon fiber used in the bicycle industry. But just like how the finest food ingredients demand the skills of a chef to yield a truly exquisite meal, bicycle frame materials require engineering expertise to produce a genuinely great bicycle. Many of our engineers would say that our Performance-level carbon bikes, like the B, presented our entire product line's most complex engineering challenges. The result is a finely tuned chassis crafted from our Performance-level carbon fiber, with a unique layup that offers a stiff, efficient pedaling interface and a smooth ride for tackling endless miles of training rides and long-distance races.

Technical Specifications

• Version B | 1
• Series: B (2.0)
• Model: B | Performance | Ultegra
• Finish: Charcoal
• Model Code: FB-21A-B14-CL-FA
• Model # M3 BBJCA08
• Sizes: 6 | 47cm (650c), 51, 54, 56, 58, 61cm
• Frame: Felt Aero TRI/TT | UHC Performance carbon fiber
• Frame Technologies: MMC / InsideOut
• Bottom Bracket Type: Threaded | BSA 68mm
• Brake Type, Rear: Rim, Direct Mount | chainstay, under the bottom bracket
• Derailleur Hanger Type, Front: Brazed-On | integrated backup plate, non-replaceable, aluminum
• Derailleur Hanger Type, Rear: Standard Mount | QR 130 TT/TRI, integrated with the frame, non-replaceable
• Head-Tube Type: Felt Aero | 1.125" /
• Protector Type: Clear vinyl for chain slap protection
• Routing Type: Internal | convertible for electronic or mechanical
• Seat Post / Clamp Type: Felt Aero TRI/TT | integrated
• Wheel Type: 700c
• Tire Max (Clearance): 23mm (4mm)
• Fork: Felt Aero TT/Tri | UHC Performance carbon fiber with aluminum steerer tube
• Headset: IS (IS-21)
• Axle, Front: QR 100
• Axle, Rear: QR 130, horizontal with integrated adjusters
• Brake Type, Front: Rim, Standard Mount
• Fork Offset: 40mm
• Headset Specification
• Top Cap: Felt Tornado
• Top Cover: Felt VariableHeight (20mm PC, 4.5mm aluminum)
• Bearings: FSA-integrated sealed cartridge
• Spacers: FSA nylon (10mm, 2x5mm)
• Compression Device: star nut for aluminum steerer tube
• Crown Race: FSA alloy
• Speed: 2x11-speed
• Shifters: microSHIFT A11, TRI/TT
• Derailleur, Front: Shimano Ultegra R8000, braze-on
• Derailleur, Rear: Shimano Ultegra R8000, short cage
• Crank: Shimano Ultegra R8000, 52/36T
• Bottom Bracket: Shimano BBR60
• Cassette: Shimano 105 R7000, 11-28T
• Chain: Shimano 105 HG601
• Crank Length: 48, 51cm: 165mm / 54, 56cm: 170mm / 58, 61cm: 172.5mm /
• Brake Levers: Tektro TL720
• Brake Calipers: Front: Shimano Ultegra R8000 dual-pivot caliper / Rear: Tektro T822 under bottom bracket mount caliper
• Wheels: Devox WheelRRS.A1 with Shimano hubs | 27/17
• Tires: 47cm: Vittoria Rubino G+, 650x23c / 51, 54, 56, 58, 61cm: Vittoria Zaffiro Pro Slick, 700x23c
• Tire Compatibility: Tubeless Compatible
• Rims: Aluminum
• Rim Depth: 650c: 24mm 700c: 27mm
• Rim Width, Inside: 17mm
• Hub, Front: Shimano RS400 | J-Bend, 28h, QR 100
• Hub, Rear: Shimano RS400 | J-Bend, 28h, QR 130, 11-speed
• Spokes: J-Bend, 2.0, stainless steel, black
• Nipples: Brass, black
• Handlebar BaseBar: Devox Bayonet 3.1 | SuperLite aluminum / Extensions: Devox Ergomod | aluminum
• Stem: Devox StemR.A2 17D
• Grips / Tape: Felt EVA arm pads with anti-microbial cover and Felt Gel tape
• Handlebar Clamp Diameter: 31.8mm
• Handlebar Width: 47, 51cm: 39cm / 54, 56, 58, 61cm: 42cm
• Stem Clamp Diameter: 31.8mm
• Stem Angle: ±17°
• Stem Length: 47cm: 60mm / 51cm: 80mm / 54, 56cm: 90mm / 58cm: 100mm / 61cm: 110mm
• Seatpost: Felt Aero TRI/TT +25 | UHC Advanced
• Seatpost Offset: +25mm
• Seatpost Length: 350mm
• Seatpost Parts & Technologies: Integrated
• Saddle: Prologo Dimension Tri STN
• Extras: Carbon assembly paste
• Weight: 20.08 lb, 9.13 kg
• Weight Disclaimer: The most accurate way to determine a product's weight is to have your local dealer weigh it. Because we understand that weight is an important metric, we strive to list it when possible. When recorded, weight is based on a sample in a specific size and with all items, as shown in the photo. It is not an exact indication of what your bike or frame will weigh, as there are tolerances in many variables involved (size, finish, hardware, components, and accessories). Felt continues to be an industry leader in weight and performance.
• Specification Disclaimer: Specifications are subject to change without notice.

Size Guide

Geometry

B (2.0)