Boardman SLR 8.9 Carbon 2025 - Road Bike
Whether you're training, commuting, or taking on a sportive, the Boardman SLR 8.9 Carbon delivers a comfortable and fast ride. Constructed with Boardman’s C7 carbon fibre, this frame balances stiffness for power transfer with compliance for long-ride comfort. Hidden mudguard mounts and extra bottle/storage space make it versatile for all seasons.
Key Features:
- C7 Carbon frame – Lightweight, compliant, and efficient for all-day comfort
- C7 Carbon fork – Offers precise steering and vibration damping
- Shimano Tiagra 2x10 drivetrain – Reliable and smooth shifting performance
- Shimano Tiagra hydraulic disc brakes – Confident stopping power in all conditions
- Boardman RD Alloy SLR wheels – Tubeless-compatible and paired with Goodyear Eagle Sport tyres
- Flared alloy handlebars – Improved ergonomics and control in all riding positions
- Available with 0% APR finance
The Shimano Tiagra 4700 groupset provides crisp, reliable 10-speed shifting, perfect for tackling climbs and descents with confidence. Hydraulic disc brakes ensure powerful stopping performance in all weather conditions.
The Boardman RD Alloy SLR wheels are tubeless-ready and designed for performance, featuring Goodyear Eagle Sport tyres for grip and durability. With 12mm thru-axles, the wheelset is stiff, strong, and built for modern road riding.
Flared alloy handlebars offer better control on descents and a narrow profile for aerodynamics. The Boardman Road saddle is designed for all-day comfort, ensuring an efficient and enjoyable ride every time you hit the road.
Derailleur Hanger - Uses the SRAM Universal Derailleur Hanger (UDH) Tredz Product ID: 237605
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Boardman C7 Carbon |
| Fork | Boardman C7 Carbon |
| Headset | ACROS INTEGRATED |
| Stem | Boardman Alloy, 80mm(XS) 90mm(S) 100mm(M) 110mm(L) 120mm(XL) -7 degree rise |
| Bars | Boardman Alloy, 380mm(XS,S) 400mm(M,L) 420mm(XL) 6 degree flare |
| Front Brake | Shimano Tiagra BR-4770 Hydraulic Disc, 160mm Rotor |
| Rear Brake | Shimano Tiagra BR-4770 Hydraulic Disc, 160mm Rotor |
| Brake Lever | SHIMANO TIAGRA ST-4720 |
| Front Mech | Shimano FD-4700 Double, Braze-on |
| Rear Mech | Shimano RD-4700, 10-Speed |
| Shifters | Shimano Tiagra ST-4720, 2x10-Speed |
| Speed | 20 |
| Rims | Boardman RD Alloy SLR, Tubeless Compatible |
| Front Tyre | Goodyear Eagle Sport, 700 x 30mm |
| Rear Tyre | Goodyear Eagle Sport, 700 x 30mm |
| Seat Post | Boardman Alloy, 27.2mm x 300mm(XS,S) 350mm(M,L) 400mm(XL) |
| Saddle | Boardman SLR Road |
| Chainset | Shimano FC-4700 50/34 Tooth, 165mm(SS) 170mm(S,M) 172.5mm(L,XL) |
| Bottom Bracket | PF30 86.5mm |
| Chain | KMC X10, 10-speed |
| Cassette | Shimano CS-HG500 11-34 Tooth, 10-Speed |
| Pedals | Resin with Toe Clips |
| Weight | 9.4 kg |
Boardman SLR 2025 Size Chart
|
Size |
Height (cm) |
Height (inches) |
Inside Leg (cm) |
|
S |
170 – 179 |
5’6” – 5’10” |
74 – 82 |
|
M |
177 – 183 |
5’9” – 6’0” |
78 – 85 |
|
L |
181 – 189 |
5’11” – 6’2” |
82 – 89 |
|
XL |
187 - 195 |
6’1” – 6’5” |
86 - 94 |
What size frame do I need if I am between sizes? - read here
Boardman SLR 2025 Geometry Chart
| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Stack | 537 | 548 | 563 | 577 | 593 |
| Reach | 371 | 378 | 388 | 394 | 404 |
| Head Tube Length | 126 | 138 | 151 | 166 | 183 |
| Head Tube Angle | 71° | 72° | 72.5° | 72.5° | 72.5° |
| Bottom Bracket Drop | 74 | 70 | 70 | 70 | 70 |
| Chainstay Length | 410 | 410 | 412 | 412 | 412 |
| Top Tube Length (horizontal) | 525 | 540 | 555 | 570 | 585 |
| Seat Tube Length | 465 | 485 | 500 | 525 | 545 |
| Seat Tube Angle | 74° | 73.5° | 73.5° | 73° | 73° |
| Crank Length | 165 | 170 | 170 | 172.5 | 172.5 |
| Stem Length | 80 | 90 | 100 | 110 | 120 |
| Handlebar Width | 380 | 380 | 400 | 400 | 420 |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycle as shipped, other geometry configurations may be available with certain bikes. Please contact us via Live Chat to find out more.
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