Boardman SLR 8.9
- Shimano 105 11 speed shifters and derailleurs for crisp and easy gear changes
- Compact 50/34 chainset with 11-30 cassette offers a wide spread of gears for climbing and descending
- Vittoria Zaffiro Pro Graphene 2.0 tyres combine grip, puncture protection, and low rolling resistance
- Boardman SLR Wheels are tubeless-ready for easy upgrades
- Tektro R315 long drop brakes for clearance with up to 28mm tyres or mudguards
Our Verdict: Fast and fun thanks to a great frameset and impressive spec list – especially for the money!
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For riders seeking an affordable carbon road bike with performance to match, the Boardman SLR 8.9 Carbon delivers speed, efficiency and versatility mile after mile. Significant component upgrades complement the already impressive frameset, resulting in a bike that punches well above its price point.
Aerodynamic Carbon Frameset Built for Speed
The SLR 8.9 Carbon centres around a responsive C7 carbon frame and fork that soak up vibrations and slice through the wind with ease. Aero tube shaping reduces drag, allowing you to maintain momentum on fast group rides and solo efforts. The balanced geometry provides a comfortable yet performance-focused position.
Upgraded Shimano 105 Drivetrain
A highlight for this model year is the move to an 11-speed Shimano 105 groupset. This provides closer gear ratios for maintaining cadence across rolling terrain as well as a lower climbing gear to conquer steep pitches. Ergonomic shifter design allows easy access across the wide cassette range.
Optimized for All-Day Performance
From the refined carbon layup to the rider contact point adjustments, the SLR 8.9 Carbon is honed for all-day comfort without sacrificing speed. The 28mm tubeless-ready wheels and tyres further enhance compliance so you can log long miles in comfort. Rack mounts add utility for bikepacking adventures and commutes.
Experience Pure Road Riding Bliss
With significant upgrades complementing an already race-ready frameset, the Boardman SLR 8.9 Carbon offers incredible value for riders ready to discover the magic formula of comfort, speed and efficiency. Unlock your riding potential on this versatile carbon road bike.
Frame: C7 Carbon - Aero-Optimised
Fork: C7 Carbon with tapered steerer
Headset: FSA Orbit C-40 ACB, 1 1/8” - 1.5” Tapered, Integrated
Bottom Bracket: FSA BB-CF86/CZ Pressfit for MegaExo
Chainset Cranks: FSA Gossamer Compact 50-34
Front Derailleur: Shimano 105 braze-on
Rear Derailleur: Shimano 105 11 speed
Shifter: Shimano 105 2x11
Front Brake: Tektro R315, long arm
Cassette: Shimano CS-R7000 11 speed, 11-30
Chain: KMC X11
Saddle: Boardman SLR
Seat Post: Boardman Alloy, 27.2mm
Stem: Boardman Alloy, 31.8mm clamp
Handlebar: Boardman Alloy, 31.8mm clamp, 70mm reach, 120mm drop
Handlebar Tape: Boardman Soft-grip
Pedals: Toe strap road, 9/16”
Weight: Approx. 8.9kg
Wheelset: Boardman Alloy Tubeless Ready
Hubs: Formula RB-51 front, RB-5711 rear
Spokes: Double Butted Stainless Steel, Radial front, 2X rear
Rims: Boardman Tubeless Ready 28h front and rear
Tyre: Vittoria Zaffiro Pro G2.0 folding, 700x25c
Boardman SLR 8.9 Carbon - Road.cc: "The Boardman SLR 8.9 Carbon retains its excellent frameset for 2021, but it's now bedecked with an even better groupset for a wider, 11-gear spread. It only boosts the already great versatility, and it's ripe for long-term upgrades."
Boardman SLR 8.9 Carbon - Cycling Plus: "There’s no doubt that the SLR offers one of the smoothest rides of any bike at this price – one of the advantages of carbon fibre, of course. You never feel that you are wanting for any stiffness, and there’s little obvious flex when you’re out of the saddle and cranking up the gears, but with long rides over potholed roads you never feel battered – a compliment to the redesigned Boardman saddle and the frame."
Verdict: "Retains the crown for best-value bike, despite the £100 increase." - Cycling Plus Magazine August 2021