With Shimano 105 now running 12-speed electronic control on the latest R7100, Shimano now rivals SRAM in the variety of 12-speed electronic groupset lineups.

However, even Geraint Thomas ran an 11-speed Dura-Ace Di2 at this year's Tour de France in Copenhagen's Grande Pearl, so you can see that actually getting a bike with a 12-speed Shimano groupset is not that easy!

Availability of Dura-Ace and Ultegra Di2 groupset is still poor almost a year after their release. It seems that the major brands will not commit to 105 Di2 until they are confident that they have enough group sets to fit thousands of bikes.

This means that you are more likely to find 105 Di2 at smaller builders who do not need as many group sets as the big brands. Also, smaller direct-sale brands can more easily adjust production if their inventory grows. And because they are built-to-order, they do not need a huge inventory of 105 Di2 group sets to start shipping bikes.

The Shimano 105 Di2 R7100 shares many of the features of Shimano's high-end 12-speed groupset, including a central battery to power the derailleur and semi-wireless shifting with wireless connection from the shift lever. [Hydraulic disc brake version, 50-34t or 52-36t chainsets only. However, all options we found were 50/34t, suggesting that semi-compact chainrings may not yet be available. This chainset could be paired with either an 11-34t in-series cassette or a non-series 11-36t, which is wider than a Dura-Ace or Ultegra 12-speed.

Below is a list of bikes with Shimano 105 Di2 and the release dates (if any) listed on each brand's website.

Ribble is a direct UK brand, but ships to the US and other countries. There is also a dedicated site for Germany (opens in new tab). There is a range of Ribble bikes with Shimano 105 Di2, including the titanium CGR Ti, Endurance SL Disc, Endurance SL e electric road bike, and the aero Ultra SL R.

The CGR Ti is an all road bike, the standard spec includes Mavic Allroad wheels and Schwalbe G-One Allround 40mm tires. The standard-specification finishing kit is from Ribble's in-house brand Level.

While all sizes are shown as immediately available, the actual delivery date for the CGR Ti and Ribble's other bikes is shown as October 2022 Ribble builds to order, so you can choose your own specifications for many components, including wheels and saddle Ribble is a custom-built company.

The Aria is Bianchi's mid-level aero race bike, offered with 105 Di2 and Ultegra Di2, SRAM Rival eTap AXS, and a mechanical Shimano 11-speed mechanical build. Unlike Bianchi's flashy aero bikes, there are no integrated cables, and brake hoses run outside the cockpit.

If celeste is not your thing, blue/gray and black paint color options are also available. Bianchi does not plan to release it until early 2023.

The Wilier Zero SLR is the brand's pro-level lightweight aero bike, with a price to match. The Italian brand now offers the Zero SL, which has the same frame geometry and features, but uses lower-spec carbon for a more affordable bike and includes a 105 Di2 option.

Willières lists the Zero SL's frame weight at 930g and fork weight at 370g. It has carbon wheels with internal cables and tire clearance up to 28 mm.

Williere's website says nothing about availability or delivery dates.

British brand Orro has a range of 105 Di2-powered bikes, including this Venturi aero bike and the Orro Gold STC (opens in new tab) endurance bike. Both are available immediately from Chain Reaction Cycles and Wiggle in the US and UK in several sizes with limited stock.

Both bikes are equipped with compact chainsets and In-Series 11-34t cassettes, Fulcrum wheels with 28mm Continental Grand Sport Race tires; the Venturi has an integrated FSA cockpit, Gold STC bars and Deda stems with exposed brake hoses.

Drumbike offers many configuration options, from wheels and cockpits to bar tape colors.

Ares is Dolan's aero bike and offers a choice of either a fully integrated Deda cockpit or external cables. The normals are fitted with wire-bead 25mm Continental Ultrasport tires. Dolan offers tire options up to 32mm Conti GP 5000.

Dolan builds its bikes in the UK, but ships to most other countries, including the U.S. Other Dolan bikes with 105 Di2 are also in the lineup, including Dolan endurance and gravel bikes.

They are available to order now, but Dolan's website does not list a delivery date.

Niche Sussex-based builder Mason Cycles offers 105 Di2-equipped alloy Definition and steel Resolution bikes, as well as a made-to-order titanium Aspect. Mason builds bikes to your specifications and can fit a wide range of Hunt wheels and Schwalbe 28mm or 30mm tires.

Mason expects Shimano 105 Di2 group sets to be available starting in the first quarter of next year, but you can pre-order them immediately.

If you're looking for a gravel bike rather than a road bike, Orro's carbon frame Terra C mixes a 105 Di2 50-34t chainset with an 11-34t cassette to give you enough range for all but the steepest gravel climbs.

Fulcrum Rapid Red 900 DB wheels with Continental Terra Trail 40mm gravel tires and Deda cockpit.

Although in limited supply, Chain Reaction Cycles and Wiggle have a few bikes in sizes S and XL available for purchase now.