ENVE MOG Shimano Di2 Custom Bike — the Mother of Gravel, built your way, with Shimano's electronic precision running the show. The ENVE MOG is already one of the most thoughtfully designed gravel frames available, and pairing it with Shimano Di2 shifting gives you a bike that is fast when you need it, reliable in every condition, and tuned exactly to how you ride. With RA Cycles' custom bike builder, you choose every single component, see it all come together on screen, and get a professionally assembled machine shipped to your door.

If you are a Shimano rider, you already know the feeling. That crisp, instant shift under full load. The braking confidence that only Shimano hydraulics deliver. The knowledge that your drivetrain is going to perform the same way on mile one as it does on mile one hundred. Shimano has spent decades refining their electronic shifting platform, and with the expansion into wireless gravel-specific groupsets, there has never been a better time to build a Shimano-equipped gravel bike from the ground up.

The MOG itself is ENVE's full commitment to gravel as a discipline. This is not a road bike with extra tire clearance bolted on as an afterthought. ENVE built the MOG from scratch as a gravel machine — a 950-gram carbon frame in size 56 that accommodates up to 700c x 50mm tires, runs three size-specific fork rakes across six frame sizes, and includes integrated storage you did not know you needed. It is the kind of bike that feels right whether you are hammering packed dirt at race pace or navigating loose singletrack on a weekend adventure.

Your Shimano Drivetrain, Your Call

The RA Cycles builder lets you choose your Shimano Di2 groupset based on how you ride and what matters to you. Dura-Ace R9200 Di2 is the pinnacle — the lightest, fastest-shifting, most refined drivetrain Shimano makes. Every gram has been optimized, and the shifting speed is measurably quicker than anything else in the lineup. If you want the absolute best and weight savings matter, this is it.

Ultegra R8100 Di2 shares the same wireless Di2 shifting platform as Dura-Ace with a nearly identical shift feel at a more accessible price. The performance gap between Dura-Ace and Ultegra is genuinely small — Ultegra is one of the best values in high-end cycling, and on a gravel bike where you are not counting grams for a hillclimb TT, many riders find it is the smarter build.

For riders who want a groupset designed specifically for the demands of gravel, the Shimano GRX RX827 Di2 is the dedicated choice. The new wireless GRX has proven itself as a credible, purpose-built gravel drivetrain — wider range cassettes up to 10-51T, a derailleur with dual-spring chain tension management designed for rough terrain, and an integrated rechargeable battery rated for 700 to 1,000 kilometers between charges. It is compatible with all Shimano 12-speed wireless shifters, so you get the same crisp Di2 shifting feel in a package that was engineered for dirt from day one.

And for riders who want mountain bike-level gearing and durability on their gravel rig, the builder includes Shimano XTR M9250 Di2 and XT M8250 Di2. These groupsets bring massive cassette ranges and proven off-road reliability to the MOG platform, which makes sense when your gravel rides start looking more like mountain bike routes.

Build It Component by Component

The builder does not stop at the groupset. You choose your wheels, tires, handlebars, stem, saddle, seatpost, bar tape — every part that makes a bike feel like yours. The interface shows you real-time pricing as you swap components, so you always know where your build stands. You can compare options, see what each choice looks like on the bike, and make adjustments until everything feels right. It is the same level of control you would have standing at a workbench with a mechanic, except you can do it on your own time from anywhere.

The Frame: What Makes the MOG Special

ENVE's M.O.D carbon platform delivers a frame that weighs 950 grams in a size 56 — impressively light for a gravel bike designed to handle everything from fast hardpack to loaded bikepacking routes. The geometry is optimized around a 42mm tire while supporting anything from 35mm to 50mm, giving you the flexibility to set up the MOG as a fast gravel racer or a capable adventure rig depending on the day.

The integrated Cargo Bay tucks two neoprene storage bags inside the downtube, giving you 36 cubic inches of rattle-free space for tubes, tools, and essentials. ENVE's IN-Route system channels hoses and wires internally for improved aerodynamics and a clean cockpit. A threaded T47 bottom bracket keeps things creak-free and easy to service. And the 27.2mm seatpost provides natural compliance so you are not beaten up on rough roads.

• Frame: ENVE M.O.D Carbon, 950g (size 56, claimed)
• Fork: ENVE M.O.D Carbon, 12x100mm thru-axle, 395mm axle-to-crown
• Rear Axle: 12x142mm thru-axle
• Bottom Bracket: Threaded T47
• Headset: ENVE Integrated IS 52/IS 52
• Seatpost Diameter: 27.2mm
• Tire Clearance: Up to 700c x 50mm
• Optimized Tire Range: 700c x 40-44mm (compatible 35-50mm)
• Brakes: Flat-mount disc
• Cable Routing: ENVE IN-Route internal system
• Storage: Integrated Cargo Bay with two neoprene bags (36 cu in)
• Sizes: Six sizes with three size-specific fork rakes
• Groupset Options: Shimano Dura-Ace R9200 Di2, Ultegra R8100 Di2, GRX RX827 Di2, XTR M9250 Di2, XT M8250 Di2

After You Check Out

When you complete your build and place the order, your card is authorized only — RA Cycles does not capture payment until an RA Custom Studios consultant has reviewed every detail with you. They will reach out by email or phone to confirm your spec, discuss availability on any special-order items, and make sure everything is exactly right. This is a conversation, not a checkout-and-forget transaction.

Every custom build ships fully assembled, quality-checked, and carefully packaged. When it arrives, you will need a torque wrench and a few minutes for final setup. If anything comes up during assembly, your RA Cycles specialist is a FaceTime call away. Riders near Brooklyn, Walnut Creek, or Miami can pick up in person and ride straight out the door.

Do Not See What You Want? Just Ask.

The builder includes thousands of component options, but the cycling world runs deep. If the specific wheel, saddle, bar tape, or any other part you want is not in the configurator, reach out to the RA Cycles team. They will source it, price it, and work it into your build. The builder is your starting point — not the boundary of what is possible.

Lead Times

Every custom build is different, so lead times are not calculated automatically. Some components are in stock and ready to go, while others may need to be special ordered. RA Cycles has been building custom bikes since 1976, and nearly five decades of relationships and inventory mean your build moves as efficiently as possible. Your consultant will provide a realistic timeline during the post-checkout review and keep you updated throughout.

Payment Options

RA Cycles offers flexible financing through Affirm, Klarna, and Shop Pay. Depending on approval, you may qualify for 0% APR, letting you spread the investment over time without interest. Financing options are available at checkout.

Final Take

The ENVE MOG with Shimano Di2 is a gravel bike built for riders who value precision, reliability, and the ability to choose exactly what goes on their machine. Whether you are drawn to the lightweight refinement of Dura-Ace, the smart value of Ultegra, the gravel-specific engineering of wireless GRX, or the mountain bike toughness of XTR and XT, the builder lets you put together a MOG that fits your riding and your budget. Spec it, review it with the RA team, and ride something that was built with care from click to torque wrench.