OPEN U.P. 2.0

The U.P. 2.0 follows the iconic original U.P. that defined modern gravel bikes in the past ten years. With even crisper handling and more tire clearance (up to 46mm true width), it is ready for every adventure from fast group rides to tough bikepacking trips. But most of all, it is for riders who love the freedom of wherever the ride takes you.

The ultralight OPEN B.A.R. cockpit offers 15mm of micro-stem length adjustment in 5mm steps, while the size-specific design for frame & aero fork ensure the best experience regardless of rider height.

Specifications:

• Weight: 995g - Excl. metal parts (but incl. T47 threaded bb shell)
• Fork weight: 390g
• Frame: XS/S/Ml/XL
• Fork: XS/S/Ml/XL
• Stem-bar: 60-130mm length, 380-430mm width
• Seatpost size: Round 27.2. Compatible with many brands and models including dropper and/or suspension seatposts.
• Bb standard: T47 threaded bottom bracket (internal cups) with 86mm wide bb shell
• Recommended groupsets: All Shimano GRX Di2 / all SRAM AXS
• Maximum compatible chainring sizes:
• Shimano GRX 1x: 52t (Shimano offers up to 46t, aftermarket aero rings from for example Wolftooth available up to 52t)
• SRAM AXS 1x: 52t (SRAM offers up to 50t, aftermarket aero rings from for example Wolftooth available up to 52t)
• Shimano GRX 2x: All cranksets (maximum offered is 48-31t)
• SRAM AXS 2x: All cranksets (maximum offered is to 50-37t)
• Note: "Standard" oval rings usually fit 2 teeth bigger than their round counterparts (I.E. A 42t oval ring fits like a 44t round ring). For heavily ovalised rings, the delta is larger.
• Front thru-axle: 100x12mm superlight carbon-ti x-12.
• Front disc rotor size: 160mm only
• Front thru-axle: 100x12mm superlight carbon-ti x-12
• Front brake caliper mount: Smartmount 160 system attaches flatmount caliper, without adaptor, for 160mm rotors
• Rear disc rotor size: 160mm only
• Rear brake caliper mount: Smartmount 160 system attaches flatmount caliper, without adaptor, for 160mm rotors
• Rear disc rotor size: 160mm only
• Rear brake caliper mount: Smartmount 160 system attaches flatmount caliper, without adaptor, for 160mm rotors
• Front derailleur mount: Bolt-on, removable
• Chain catcher: Custom Wolftooth chain catcher note: attaches to the mounting points for the front derailleur mount
• Headset: Identical standard is52/40 x 45o upper & lower bearing
• Computer mount: Integrated computer mount: compatible with Garmin, Wahoo & Hammerhead (using Hammerhead's Wahoo-insert).
• Integrated GoPro mount: Compatible with gopro and other compatible devices (lights, etc).
• Indoor trainer compatibility: We recommend direct drive indoor trainers only. These are trainers where you remove the rear wheel of your bike and install the bike onto a cassette that is fixed onto the trainer. Some of the most popular compatible direct drive indoor trainers are (but others may work too):
• Max. Weight (total rider+luggage): 120kg / 264 lbs - en/iso/internal test standard
• Included with frameset:
• Frame + fork
• Open B.A.R.Seatpost
• Headset
• UDH RD hanger
• 2 multistops (1x, Di2, eTap)
• Open x Wolftooth chain catcher
• Computer mount & GoPro mount
• Noise-reduction foam sleeves
• Manual

The Shimano GRX RX717 Di2 (1x12) is the "everyman's" electronic gravel groupset, launched in late 2025 as the more accessible sibling to the flagship RX827.

It is essentially a "remix" of Shimano's most reliable tech: the wireless shifting logic and levers from 105 Di2 paired with the rugged, clutch-equipped rear derailleur architecture of Deore Di2. It’s the perfect "privateer" setup—all the performance of the top tier, but with more durable materials that won't break the bank if you clip a rock in the Peak District.

Rear Derailleur: RD-RX717 (SGS)Wireless; Shadow ES with Clutch.

Shifter (Right)ST-RX715-R Di212-Speed Wireless; CR1632 powered.

Brake Lever (Left): BL-RS717-LBrake-only; matching ergonomics.

CranksetFC-RX610-138T or 40T steel/alloy chainring.

Cassette: CS-M6100 (Deore)10-51T (Requires Micro Spline freehub).

Brake Callipers:  BR-RX410  Flat mount; mineral oil hydraulic.

Chain: CN-M610012-speed HG+ for smooth downshifts.

Weight (Groupset): approx 2661g: Robust build, ~150g more than RX827.

Max Cog Size: 51T: Designed specifically for 1x "Wide" range.

App Support: E-Tube Project - Customise buttons and shift speed via phone.

The Shimano FC-RX610-1 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed-terrain riding. By pairing a 10-45T or 10-51T cassette with 38T or 40T chainring, riders can choose closer gear steps or ultimate range depending on personal need.

Specifications:

• Model No: FC-RX610-1
• Series: GRX
• Rear speeds: 12
• Compatible chain: HG 12-speed
• Chain line (mm): 49.7
• P.C.D. (mm): 110

T47 External Bearing BB for installing a Shimano Hollowtech II cranks into a T47 68 Road or 73mm MTN frames.

Features:

• Patent Pending Outboard Bearing Design.
• “Collet” style non-drive cup expansion for wiggle-free press.
• Non-Drive O-Ring compensates for frame width discrepancies.

Specifications:

• For Shimano Hollowtech II cranks.
• Forged & machined heat-treated 7075 T6 Aluminium.
• Steel cartridge radial bearings.
• 68mm Road version / 73mm MTB Version.
• For T47 E.B.​

Fully internal one-piece carbon gravel cockpit with patented 15mm stem length adjustment. Lightweight, aero, and ergonomic.

For the 2025/2026 season, Open Cycles has introduced the OPEN B.A.R. (Break All Rules) cockpit. This is a one-piece integrated carbon bar and stem designed specifically for the new generation of U.P. 2.0 and U.P.P.E.R. 2.0 (including the limited CONCE.PT frames).

Historically, Open avoided integrated cockpits because they were difficult to fit and travel with. The B.A.R. solves this with a patented internal clamping system that allows for 15mm of stem length adjustment, meaning you can fine-tune your reach without bleeding your brakes or swapping bars.

The OPEN B.A.R. is a "closed-form" 100% carbon composite design. Unlike traditional integrated bars that use heavy metal inserts or vertical cuts for clamping bolts, the B.A.R. uses continuous carbon fibres throughout. This makes it exceptionally light and significantly more compliant, absorbing the "high-frequency buzz" typical of gravel surfaces.

The Patented Adjustment System

The genius of the B.A.R. is its internal slider clamp. Each bar size comes with a base stem length that can be adjusted forward or backward by 15mm in 5mm increments.

• Fit Flexibility: You can change your position from "Aggressive/Aero" to "Upright/Adventure" in minutes.

• Travel-Friendly: Because the adjustment often doesn't require undoing the hydraulic hoses, you can "shorten" the stem for packing the bike into a travel bag without a full mechanical tear-down.

Key Features

• Full Internal Routing: Hoses and wires enter through the bars and exit directly into the frame's head tube for a completely "clean" front end.

• Ergo-Aero Shaping: The tops are slightly backswept and flattened for aerodynamic efficiency and a comfortable "palm rest" during long climbs.

• Shallow Drops: Designed for gravel, the drops are shallow and feature a mild flare, ensuring you can reach the brake levers easily, even in technical terrain.

• No External Bolts: The clamping mechanism is hidden, creating a smooth, snag-free surface that is also more aerodynamic.

• Reach / Drop: 70mm / 120mm - Compact gravel geometry.

• Flare: Mild (approx. 10-12-degree) Balances road aero and gravel control.

• Width Options: 38, 40, 42, 44, 46cm - Measured centre-to-centre at hoods.

• Length Range: 80mm to 120mm - 10 sizes covering all rider heights.

Open Cycles Standard IS42/IS52 Sealed Cartridge Bearing Headset

Weight includes all headset parts and all headset/stem spacers

Round 27.2. The most boring seatpost size may not look like a design choice, but it is. It is light, offers great compliance and is compatible with a long list of seatposts, including many dropper and/or suspension posts should you desire to use one of those. Compatible with many brands and models including dropper and/or suspension seatposts.

Performance Allroad saddle with 3D reactive damping. Features TiNox rails, carbon composite shell, and BASF Infinergy core.

The Ergon SR Allroad Core Pro is the definitive "all-road" saddle for riders who want to maintain a fast road position while venturing onto rougher surfaces. Its standout feature is the Core HD technology—a sandwich construction using BASF Infinergy® (the same E-TPU foam found in high-end Adidas running shoes) that allows the saddle to follow the natural motion of your pelvis while filtering out 3D vibrations.

Unlike traditional saddles that rely solely on foam density, the Ergon Core system acts as a functional suspension unit that remains firm for power transfer but "active" for comfort.

The SR Allroad Core Pro bridge the gap between a stiff road racing saddle and a plush touring seat. By placing the Ergonomic Core between a supportive lower shell and a performance-oriented upper padding, Ergon has created a "TwinShell" design. This allows the top of the saddle to move independently, significantly reducing pressure on the sit bones and the perineal area during long, unpaved adventures.

The Infinergy® Advantage

• E-TPU Particle Foam: The core is made of thousands of expanded thermoplastic polyurethane particles. This material has an incredible rebound rate; it absorbs a shock and immediately returns to its original shape, ensuring the damping never "bottoms out" even on washboard gravel.

• Full-Surface Damping: Unlike saddles that only offer relief in the centre, the Infinergy core dampens vibrations across the entire seating surface, which is crucial when you shift your weight forward for steep climbs or back for descents.

• Male-Specific Ergonomics: The deep central relief channel is specifically tailored to the male anatomy to prevent numbness by removing pressure from the sensitive soft tissue zones.

Key Features

• TiNox SL Rails: These stainless steel and vanadium alloy rails offer a high strength-to-weight ratio and better vibration absorption than standard hollow CrMo.

• Carbon Composite Shell: Provides a stiff, responsive foundation that ensures your pedalling energy isn't lost to shell flex

• Microfibre Cover with Side Flanks: The cover is designed to be low-friction for easy movement, while the reinforced side flanks protect against scuffs when leaning the bike.

• Orthopaedic AirCell Foam: The top layer of padding uses closed-cell foam for a firm, sporty feel that doesn't hold water.

If you need pedals, check out our dope range!
 

The Shimano RT-CL700 is the workhorse of the 2026 rotor range. It is the go-to choice for riders who want the heat-management benefits of Ice Technologies without the added cost (and distinctive look) of the "Freeza" cooling fins found on the higher-tier CL800 and CL900 models.

These rotors are specifically designed to be quieter and more resistant to heat-induced warping, making them an ideal match for a GRX Di2 build.

The Fizik Vento Solocush Tacky bar tape is the "pro-choice" for riders who want maximum grip with a sleek, aerodynamic profile. It sits in the middle of Fizik’s range—offering more comfort than the ultra-thin Microtex but less bulk than the gravel-specific Terra.

It is specifically designed for high-performance road and "all-road" use where control and tactile feedback are the primary requirements.

The Solocush construction is a streamlined, single-layer cushioned platform. At 2.7mm, it is thick enough to take the sting out of rough tarmac and light gravel, but thin enough to maintain a direct "feel" for the handlebars. The Tacky finish is a non-slip, raised texture that provides an incredible level of security, even when riding in torrential rain or with sweaty hands without gloves.

The Solocush Advantage

• Single-Layer Construction: Unlike "Bondcush" which uses a multi-layer sandwich, Solocush is a single piece of foam. This makes it much easier to wrap cleanly around the shifter hoods without creating unsightly bulges.

• Tacky Finish: The surface is highly adhesive to the touch. It provides a locked-in feel that is essential during high-intensity sprints or when navigating technical descents in the drops.

• Vento Series: Part of Fizik's racing range, meaning it is designed for the most aggressive "drop bar" positions where weight and aerodynamics are key considerations.

Key Features

• Durability: The synthetic material is highly resistant to UV damage and sweat corrosion, outlasting traditional cork tapes by a significant margin.

• Minimalist End Plugs: Ships with sleek, laser-etched expanding bar plugs that stay secure even on rough terrain.

• Weight Conscious: One of the lightest "padded" tapes on the market, perfect for high-end builds.

• Easy Maintenance: The Tacky surface can be wiped clean with a damp cloth, though light colours (like Fluoro Yellow or White) will require more frequent attention.

No Chain Device Fitted

The Easton EA70 AX is the workhorse alloy wheelset of the Easton gravel line. It is designed to be the "go-anywhere" option, prioritising durability and internal rim width for high-volume tyres over the absolute weight savings found in the carbon (EC) or top-tier alloy (EA90) models.

The EA70 AX is built around a versatile aluminium rim with a 24mm internal width. This "AX" (Adventure Cross) geometry is specifically optimised for gravel tyres ranging from 35mm to 50mm, allowing for lower pressures and a better tyre profile. The wheels use Easton's reliable X5CL hubs with standard 11-speed or XDR driver body options.

Durability and Trail Feel

• Asymmetric Rim Design: The rims are slightly asymmetric to balance spoke tension between the drive side and non-drive side, resulting in a stiffer, more durable wheel that stays true longer on rough terrain.

• X5CL Hubset: These hubs use sealed cartridge bearings and a Centerlock disc interface. They are designed for easy maintenance and are compatible with all modern thru-axle standards (12x100 front, 12x142 rear).

• Tubeless Ready: The wheels come pre-taped and with valves, featuring a "Fantally" rim bed profile that makes seating stubborn gravel tyres significantly easier with a floor pump.

Key Features

• J-Bend Spokes: Uses standard Sapim double-butted J-bend spokes, making it easy to find replacements at any local bike shop while on a bike-packing tour.

• High-Volume Optimised: The 24mm internal width "squares off" the tyre carcass, reducing tyre squirm during hard cornering.

The Michelin Power Gravel is an established favourite in the UK for its exceptional puncture resistance and longevity. It is often described as a "fit and forget" tyre—ideal for riders who prioritise durability over absolute weight. It sits in Michelin's Competition Line, utilising many technologies derived from their professional road and mountain bike ranges.

The tread features a dense, directional pattern of small triangular blocks that transition to larger shoulder knobs, making it an excellent all-rounder for everything from paved cycle paths to loose forest fire roads.

The Power Gravel is Michelin’s answer to the demand for a fast-rolling yet "bombproof" gravel tyre. It is built around a robust 3x120 TPI casing, which provides a unique balance: it is supple enough to absorb trail buzz but thick enough to withstand the sharp flints and debris common on UK bridleways.

Core Technology

• Magi-X Compound: Developed for Michelin’s top-tier MTB tyres, this compound is engineered to provide maximum grip without sacrificing rolling efficiency. It is also highly resistant to wear, making it one of the longest-lasting gravel tyres on the market.

• Bead-to-Bead Shield: Unlike many tyres that only have a puncture strip under the tread, Michelin reinforces the entire casing from one bead to the other. This significantly reduces the risk of sidewall slashes and pinch flats.

• Gravel Design Tread: The centre tread is low-profile and tightly packed for low rolling resistance on tarmac. As you lean the bike over, the blocks become larger and more spaced out to "bite" into loose dirt and gravel corners.

• Hookless Compatibility: Modern versions of the Power Gravel (Competition Line) are rated for both Hooked and Hookless rims, making them a perfect match for modern wheelsets from Zipp, ENVE, and Reserve.

Key Features

• TLR (Tubeless Ready): Designed for easy seating on most modern tubeless rims. When run tubeless, the rolling resistance drops significantly while adding even more puncture security.

• E-Bike Ready: Due to its robust construction and high-traction compound, this tyre is certified for use on electric gravel bikes (up to 25km/h).

• Classic & Black Options: Available with the "Classic" tan sidewalls for a vintage aesthetic or a standard black finish.