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Despite its smaller, lighter design, the DURA-ACE FD-R9250 brings the fastest front shifting on the market. No point in fixing what isnt broken. Well, the answer is no the brand is ditching the mechanical side. The pistons also retract 10% more than the previous generation callipers to help reduce the likelihood of brake rub. You recharge the battery via a port on the rear mech. Shimano has stuck with its signature Hollowtech II design, with cranks made from hollow, bonded aluminium, and a 24mm spindle that plays nicely with all bottom bracket standards. With the release of Shimanos 12-speed DURA-ACE R9200 and Ultegra R8100 Di2, Ive been getting a lot of questions on compatibility. A couple of advantages to this are that it's easy to take the battery off and recharge it somewhere convenient with SRAM's recharging cradle and that if one battery goes flat (usually the rear) you can swap them about and keep going. Originally a roadie, he likes bikes and kit of every type, including gravel bikes and mountain bikes, and he's tested a huge variety of all three over the years for BikeRadar, Cycling Plus, Cyclist.co.uk and others. While its perhaps less relevant to those of us with amateur power outputs, Shimanos biggest crank option is now a 54/40t rather than a standard 53/39t, a rebuke of sorts to the trend for smaller cogs at the cassette, as favoured by the likes of SRAM and Campagnolo. Shimano says its reduced the amount of free stroke in the brake levers and they now benefit from Servo Wave, which makes the relationship between lever travel and pad travel non-linear. Shimano says that maintaining a central battery for the two derailleurs makes for longer run times. . It can absorb water from the atmosphere, but even with 4% water still boils at 155C. Time to talk about the other elephant in the room: mechanical drivetrains and rim brakes. The new wheels are built on what Shimano calls direct engagement hubs. Yes, yes, and more yes. That change doesnt alter things dramatically, but it does fill your palms more thoroughly if youre a rider who likes to stretch their arms out over the hoods. 12 Speed; Front Derailleur: Shimano Dura-Ace R9270 Di2; Rear Derailleur: Shimano Dura-Ace R9270 Di2 ; Chainset: Shimano Dura-Ace R9200 - 34/50T; Cassette: Shimano Dura-Ace R9200 - 11/30T; Chain: Shimano - 12 . The best and worst of Shimano's new 12-speed road groups By Matt Phillips Published: Aug 31, 2021 Dan Chabanov It's Dura-Ace Day. Road - Dura Ace Di2 12-speed: SHIMANO Dura Ace Di2 Time Trial Shift- | Brakelever ST-R9180 for hydraulic Disc Brakes | single - SHIMANO Dura Ace Di2 R9270 C. shipping country: language: [email protected] (+49) 351 811 975 90; 100 days right to return; r2-bike.com. Free worldwide delivery available on most items! The good news here is that the spindles have the same construction and spline patterns, just like all other HollowTech II cranks. However, on the road side it lacks any type of damper or clutch. For example, the EP8 drive unit features two SD300 ports, but it is compatible with SD50 type shifters and displays through the use of the adapter. The Dura-Ace range comprises rim depths of 36mm, 50mm and 60mm, in a choice of tubeless-ready disc brake, tubular disc brake and tubular rim brake variants. This pushes up the top end ratio slightly to satisfy the ever-increasing speeds of pro racers, but also leads to a more efficient chainline when riding faster. Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more. Without further ado, lets get into the shared details. . THIS WEBSITE USES COOKIES TO IMPROVE YOUR USER EXPERIENCE. It's worth noting though that Shimano's rear mechs also come packed full of tech, including the brand's Shadow design which is borrowed from its mountain bike groupsets. Only a very small percentage of riders use Di2 and an even smaller portion of that is into time-trialing. The test bike was set up with climbing shifters on the bar tops. New Dura-Ace is referred to as R9200 series, and it comes in just two flavours: R9270 is semi-wireless. Shimano Dura-Ace R9200 v Ultegra R8100: what are the key differences? Plus, save 25% off the subscription price! Shimano Dura-Ace R9200 Di2 12 Speed Disc Groupset - Bikebug Despite the move to 12-speed, Shimano hasnt radically shaken up its gearing in the way SRAM did when it launched its eTap AXS groupsets (SRAM paired smaller chainrings with a 10-tooth cassette sprocket), but it has chosen to offer a more everyman choice of cassettes, with 11-28t, 11-30t and 11-34t options available. You can use the SD300 port to connect an EW-SD300 wire. Save 25% + Crankbrothers Stamp 1 pedals (worth 49.99) when you subscribe to MBUK magazine. Claimed weight for the complete Dura-Ace Di2 R9200 groupset is 2,507 g, which amounts to a 21-gram gain over the previous generation. Price: US $2,250.00. You'll save yourself around 100g by opting for Dura-Ace over Red eTap, although the latest 12-speed Dura-Ace is actually a few grams heavier than the older 11-speed version; it looks as if the quest for ever-lower groupset weights may have peaked. Use the top port to update the shifter. The SRAM Red AXS chainset has the two chainrings machined out of one block of material instead of being held together by chainring bolts like Shimano's groupsets. Shifts inward to larger sprockets apparently havent changed much, but shifts in the other direction are said to happen 66% faster than before (which was already perceptibly faster than SRAMs AXS drivetrains). Shimano has also released new Dura-Ace and Ultegra wheels. None of the R8050 / R9150 components have gotten that update, except the ones listed earlier. Suntours uneven Accushift? Shimano says that, in addition to drawing little power, its proprietary wireless protocol also somehow transfers signals from the levers to the derailleurs faster than the previous wired setup, apparently due to updated circuitry that processes the commands four times faster. Shimano Ultegra Di2 (R8100) vs Dura-Ace Di2 (R9200) 12-speed Groupset As with the previous generation, optional sprint shifters (SW-R801) and climbing shifters (SW-R801-T) can be added to suit rider needs. Shimano's new premium 12-speed Di2 electronic road groups not only feature the proven HYPERGLIDE+ technology that revolutionized mountain bike shifting, but the new, wireless cockpit takes cycling's fastest electronic shifting system and makes it even faster. Shimano Dura-Ace vs SRAM Red AXS vs Campagnolo Super Record - BikeRadar Finally carrying over from the mountain bike side of the family is the Servo Wave lever pivot mechanism, which alters the leverage ratio at different points in the brake lever travel. You shift one (usually the right one although that's configurable) to move to higher gears and the other to shift to lower gears. Shimano can justifiably point to the fact that, all else being equal, larger cogs and chainrings are more efficient than smaller ones. The smaller articulation angle between the chain links as they pass over an 11-tooth sprocket should also lead to lower friction, although SRAM claims that the 12-speed Red eTap with a 10-tooth sprocket is as efficient as its previous generation 11-speed system with an 11-tooth smallest sprocket. While its true that the majority of Dura-Ace and Ultegra buyers arent going to be putting this stuff on gravel bikes, there are still plenty of bumpy paved and dirt roads out there that people ride with road bikes, and chain slap can be an issue there, too. Either way, the advantage of the new spline is that you can now run aluminum freehub bodies without the individual sprockets digging in the same way since theres twice as much surface area to distribute the load. Since the sprocket-to-sprocket spacing on the cassette is the same as Shimanos 12-speed mountain bike groupsets, Dura-Ace Di2 R9200 and Ultegra Di2 R8100 simply borrow existing chains from that side of the fence with no changes whatsoever. Shimano claims some aero gains and weight savings here. Buy your Shimano Dura Ace R9270 Di2 Disc Groupset - 12 Speed at Merlin. low sprocket: 34T CFRP rear derailleur plate View More FIND A DEALER SPECIFICATION ICON PRODUCT SPECIFICATIONS View More Notably missing from that list is the traditional 53/39T, which Shimano says just wasnt big enough for how much faster top racers are moving these days. You can also buy a separate power meter spider as an upgrade to a non-power meter chainset. come in at 2,518g for SRAM Red eTap AXS vs 2,438 for Shimano Dura Ace Di2. If youre spending money on a new Di2 groupset anyway though, you might as well go all the way and upgrade the crankset too. SRAM Red eTap AXS 2518g / RRP 3,794. Pedal Lane PH on Instagram: "FACTOR O2 NEW COLORWAY AVAILABLE FOR In fact, Im confident that they will make them at some point, probably in a year or two. The higher boiling point should make a DOT fluid-based system more stable, says SRAM, leading to longer periods between brake system bleeds. Is there an easy (cheap) upgrade path? It also incorporates the wireless brain that talks to the levers and any external paired devices. You'll save yourself around 100g by opting for Dura-Ace over Red eTap, although the latest 12-speed Dura-Ace is . The problem in reducing size is that you also reduce strength, so SRAM both flattened the top and made it out of a new material that is both harder and longer wearing than its old model. Shimano Dura-Ace v SRAM Red eTap AXS: Everything you need to know Yes, you read that right, mechanical Dura-Ace is dead. Both are programmable with built-in Bluetooth, both are focused on disc brakes but also offer a rim brake option and both let you add an in-series power meter. Shimano says complete bikes with the new Dura-Ace Di2 R9200 and Ultegra Di2 R8100 build kits should be available immediately from various partners, though invariably in limited quantities. SRAM's Red-level rim brakes are single pivot only, whereas Shimano also has a direct mount Dura-Ace option. Speed was the driving force behind this next-generation road group. With the explosion in fully internal cockpit routing, getting rid of the wires up front eliminates one of the biggest hassles of building up a new bike (particularly on the OEM side, which was perhaps a big driving factor in the decision). Been waiting since November to complete a build. 105 Di2 uses the same 3.7Wh, 7.4-volt DN300 battery as Dura-Ace and Ultegra to power the front and rear derailleurs. The very latest and highest specification Shimano groupset, Dura Ace R9270 wireless Di2. OK, its time to address one of the elephants in the room: compatibility with existing 11-speed stuff. Subscribe to MBUK and get a pair of Crankbrothers Stamp 1 pedals as your welcome reward! Sure, you lose the display - but the Bluetooth/ANT functionality has moved to the rear derailleur. It's geared to flat time trials as well as gravel, with larger rings designed to be aero. The day that Shimano rolls out the latest version of. It's also allowed Shimano to separate the upshift and downshift levers a bit more widely, reducing the risk of mis-shifting which was an issue particularly when wearing heavier winter gloves. They display the current gear, synchronized shift mode, battery status, and they emit a warning beep when you reach either end of the cassette. How do I shift the bike? The 48/35 and an 11-28 is the equivalent of a 52/36 with an 11-28 cassette. DURA-ACE Di2 Rear Derailleur SHIMANO SHADOW RD 12-speed Dura-Ace R9200s 12-speed cassettes will come in two ratios of 11-30t and 11-34t initially, with an 11-28t option to follow. Youre probably also wondering about drivetrain wear, and unfortunately, theres no clear answer from Shimano. TESTED: Shimano Dura Ace | 12-speed Road Components - Bicycling Much teased and occasionally leaked, Dura-Ace R9200 has been a long time coming. All-new pro-level flagship groupset launches along with Ultegra and matching wheelsets. It may not seem like a big deal, but keep in mind that Shimano sells an awful lot of stuff. Even now you can still find 6870 Ultegra derailleurs and shift levers, and that was released in 2013. Ridley Noah Fast Dura Ace R9270 Di2 Disc Custom Paint Road Bike In comparison to Shimano's traditional gearing, the 50/37 and a 10-26 cassette is the equivalent of the 53/39 with an 11-25 cassette. In the drops and on the top of the bar for example. The curve of the lever blades will feel familiar to anyone whos been using Shimano controls for the past few years, but theyre now canted a bit outward so they more naturally fall within reach of your fingertips while on the hoods. Shimano meanwhile has a single central battery that's usually mounted in the bike's seat tube and powers both derailleurs via wires. There have been reports of people successfully using the 12-speed chain on 11-speed cranksets, so in theory, you could keep your current crankset and upgrade everything else. You should get around 60 hours of riding on a charge, with each derailleur having an indicator light that shows green, red then flashing red to show battery level. You will be notified when the item comes back into stock. Also note that since as standard the power meter is integrated into the chainrings, which SRAM says it's done to ensure the best accuracy, you need to replace this too when you replace the rings. Shimano will continue to manufacture and sell 11-speed mechanical Ultegra groupsets for some undetermined amount of time probably another model year or so but after that, its all electronic from this point forward. The system won't work. Return Home. Probably the biggest story about the new Dura-Ace Di2 R9200 and Ultegra Di2 R8100 is that all of the components are no longer physically wired together. COMPONENT Fully tested and all. Without updated firmware, the bike simply wont work. Though they seem more old-fashioned than sealed cartridges, theyre actually more durable since they can handle so much more load without pitting, theyre easy to service (and are actually serviceable instead of just being replaceable), and can be adjusted for optimum preload. Whats it like to be an American cyclist living in France? If youve clicked the links to the component pages you have probably noticed that most of these have one thing in common: theyre all time-trial shift units. England and Wales company registration number 2008885. Shimano doesnt yet have media samples of Ultegra for us to test, but I have been using a Dura-Ace Di2 R9200-equipped Low Bicycle Disc MKii for the past few weeks. Dura-ace R9150 Series | Shimano Bike Component Shimano's 12-speed cassettes work with the brand's new 12-speed road freehub, though they're also backwards-compatible with HG-style freehubs; . Shimano has also reverted back to dumb switches like the first-generation Di2 stuff, so the buttons themselves are much smaller than the current stuff for easier and more flexible placement. Target does not represent or warrant that this information is accurate or complete. However, and this is a big one, the components you connect to a Di2 system need to have firmware that will let them communicate with the other components. One end accepts the existing EW-SD50 wire, the new EW-SD300 goes into the other, and the rest is handled via firmware updates. DURA-ACE | Shimano Road The rear derailleur takes care of wireless communication with the levers. Shimano DURA ACE Di2 Online Shop | Bike-Discount Ditto if you want to tweak your ratios. The Direct Mount mini-link up top carries through from the previous version, and its expected that the number of bike and frame manufacturers offering dedicated hangers will continue to increase moving forward. . SRAM Red eTap AXS brake/shift levers have a large single paddle each. Surprisingly, its actually slightly heavier than its predecessor Dura-Ace R9100, according to Shimanos own figures. The Specialized S-Works Tarmac SL7 Dura-Ace Di2 was selected for an Editor's Choice award in 2020. . What features and benefits, you ask? Of course, the new DURA-ACE wheels come with a freehub body that only accepts the new 12-speed cassettes, but your existing 11-speed wheels will accept 12-speed Shimano cassettes no problem! Considering that the total Q-factor difference is 2mm, the difference on the non-drive-side would only be 1mm. In the case of play on the crankset, companies like Wheels Mfg make Shimano compatible crank spindle spacers in both 0.5mm and 1mm widths. Contact Us. I asked Shimano about this specifically and this is the response I got: The old and new spindles have the same construction and they might look like they fit but the Q-factor is slightly different (the new crankset has a wider Q-factor) and cosmetically the colour is different. Hands-on with the new Shimano 105 Di2 R7100 groupset - BikeRadar The . Its a minor difference in the grand scheme of things, but it also means the appearance of the levers doesnt change much when you adjust the lever reach. You can also buy a power meter upgrade kit (but not a complete groupset) with 52/39t, 54/41t and 56/43t rings.