Boardman ADV 8.9 Carbon - Nearly New - S 2026 - Gravel Bike
This ADV 8.9 Carbon - Nearly New - S gravel bike is rated as an Excellent Grade which reflects that the bike is in very good condition and can be considered to have been 'pre-pedalled'. Having been lightly used, there are some signs of use on the bike. The only minor visible marks are on both discs, chainset, rear mech and cassette.
To ensure this bike meets our high standards for quality, it has undergone a thorough inspection by our professional mechanics. As with all our bikes, it comes with a 12-month Tredz warranty, plus any additional manufacturer warranty which may apply.
The Boardman ADV 8.9 Carbon is designed for riders who seek adaptability and versatility. Its lightweight 990-gram carbon frame and 420-gram carbon fork ensure a smooth, responsive ride. Equipped with Shimano's gravel-specific GRX groupset and robust Goodyear tyres, this bike is ready to tackle a variety of terrains with ease.
Key Features:
- Frame: Adventure, C10 carbon, 71.5-degree head angle, hidden mounts for mudguards and storage fixings
- Front Fork: Rigid, full C10 carbon
- Drivetrain: Shimano GRX, 2x10-speed
- Brakes: Shimano BR-RX400 hydraulic disc brakes
- Wheels: Boardman ADV alloy, tubeless ready
- Tyres: Goodyear Connector, 700x40mm, tubeless ready
- Other Standout Feature: Flared alloy handlebars for optimal control
- Finance Option: Available with 0% APR finance
The heart of the ADV 8.9 Carbon is its 990-gram C10 carbon frame and 420-gram carbon fork. Its neutral 71.5-degree head angle delivers predictable handling on and off the road. The frame also boasts hidden mounts for full-length mudguards, dropper post routing, and bottle and storage fixings on the top tube, seat tube, and downtube.
The Boardman ADV 8.9 Carbon is fitted with Shimano's dedicated gravel-specific GRX series groupset. A GRX 10-speed drivetrain benefits from adventure-specific ergonomics and optimised gearing. The double 30/46 tooth chainset and the 10-speed, 11-36 tooth cassette at the rear offer ample gear choices, allowing you to maintain power and speed on the flat while keeping cadence high on climbs.
Goodyear's 40mm gravel-specific Connector is the ADV 8.9's tyre of choice. Designed as a fast-rolling all-terrain tyre, its versatile tread pattern delivers straight-line momentum whilst retaining grip. Reliable and robust adventure-specific Boardman ADV wheels feature 12mm through axle hubs laced with Sapim Race spokes onto tubeless-ready alloy rims with a 22mm internal width.
Flared alloy handlebars allow for an optimal ergonomic hand position on the hoods, more control whilst in the drops, and facilitates more frontal space to carry additional luggage. The ADV's Prologo Akero RS is a dedicated adventure/gravel saddle that balances comfort and performance.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Adventure, C10 Carbon |
| Fork | Rigid, Full C10 Carbon |
| Headset | FSA No.42, 1-1/8" - 1.5" |
| Stem | Boardman Alloy, 80mm(S), 90mm(M), 100mm(L), 110mm(XL) -7degree rise |
| Bars | Boardman Alloy, 400mm(S), 420mm(M,L), 440mm(XL) 16 degree flare |
| Front Brake | Shimano BR-RX400, Hydraulic, 160mm Disc Rotor |
| Rear Brake | Shimano BR-RX400, Hydraulic, 160mm Disc Rotor |
| Brake Lever | Shimano GRX ST-RX400 |
| Front Mech | Shimano GRX FD-RX400, Double |
| Rear Mech | Shimano GRX RD-RX400, 10 Speed |
| Shifters | Shimano GRX ST-RX400, 2x10 Speed |
| Speed | 20 |
| Rims | Alloy, Double Wall, 12mm Thru-Axle, Tubeless Ready (Tubeless Rim Tape Installed) |
| Front Tyre | Goodyear Connector, Tubeless Ready, 700x40mm |
| Rear Tyre | Goodyear Connector, Tubeless Ready, 700x40mm |
| Seat Post | Boardman Alloy, 27.2mm x 350mm(S,M), 400mm(L,XL) |
| Saddle | Prologo Akero RS |
| Chainset | Prowheel 30/46T, 170mm(S), 172.5mm(M,L), 175mm(XL) |
| Bottom Bracket | Prowheel BB386 |
| Chain | KMC X10, 10 Speed |
| Cassette | Shimano CS-HG50, 11-36T, 10 Speed |
| Pedals | Alloy, cage |
| Weight | 9.8kg |
Typical Bike Size Chart
|
Height
|
Bike Size
|
Road Bike Size
|
Mountain Bike Size *
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
44 cm
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
48 cm
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
51 cm
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
54 cm
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
56 cm
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
58 cm
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
60 cm
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
62 cm
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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