This ties up with running the widest 11-28 cassette with a compact chainset (34/50 or 36/52). A huge advantage for riders who find themselves riding in tightly packed groups, in which case a rear derailleur could potentially get hit. That's a 33t spread and Ultegra 6600 Short Cage … I'm getting my RT-58 ready for some hilly rides, and since I'm not much of an uphill rider, I'm changing the current 11-28t cassette to an 11-32t. For the 30 or 32 tooth cassettes you need the mid cage (wifli). Staying in the world of Campy, and with a short cage, then a 12-29 cassette paired with a 50-34 crankset = 33T total and is the lowest gearing with full operation. The maximum cassette size compatible with the short cage eTap 2x11 rear derailleur is 11-28. Furthermore, because of its cable-actuation ratio, which converts the 10-speed cable-pull distance it receives from the shifter into 10-speed lateral derailleur movement, the Tiagra RD-4700 rear derailleur is not compatible with any other Shimano 10-speed rear shifter. In fact, if you have that derailleur, you can use a 36T cog on there with no adjustments other than a longer chain and a tighter b-screw. No. You can get the alignment surprisingly close by eyeing the hub axle from top and back, and bending the hanger to make it all parallel. I've been trying to spend more time climbing and my aging knees would be happier with larger toothed cogs in the rear cassette. the cassette spacing is the same for all Campagnolo 11 speed cassettes but a short cage mech is not going to give chain tension in the small ring and the first 3 or so gears with a 12-32T. There is also a Long Cage Length type, and its maximum cage capacity is that of 43-44T. If you have a medium cage SRAM rear derailleur on your gravel bike, you most likely have an Exploro Speed with a Force 1 rear derailleur and an 11-36 cassette. I just bought a new road bike for my wife, and it is equipped with Shimano’s Tiagra 10-speed components. The cog spacing is standard 10-speed, however, so it will work with both of your 10-speed wheels. ... Rear Derailleur SHIMANO ULTEGRA Short Cage Rear Derailleur 11-speed. A cassette with more than 28t is impossible Solution: mount a long cage derailleur, for example the Ultegra 6800 long cage, which has a maximum cassette capacity of 32t. The rear derailleur comes in a short cage (SS) design suitable for 11-25T up to 11-30T cassettes, and a long cage (GS) version suitable for 11-28T up to 11-34T cassettes. Long cage = easier to move / short cage = harder to move. SHIMANO ULTEGRA - Rear Derailleur - Short Cage - SHIMANO SHADOW RD - 11-speed Updated with a SHIMANO SHADOW RD design, the SHIMANO ULTEGRA 8000 rear derailleur offers a sleek appearance and optimized shifting performance. - Medium (205g) for double chainset and sprocket set up to 13-29 or for triple chainset and sprocket set up to 13-26. I had to tighten the b-screw in a bit to get it to not make noise on the 32T cog. I plan on putting a larger cassette on my bike for an upcoming very hilly ride. If you have a traditional road double-drivetrain with a regular cassette (i.e. Photo: Lennard Zinn | VeloNews.com, Dear Lennard, A rear derailleur (often referred to as a 'rear mech') is the mechanism that moves the chain from cog-to-cog on the cassette at the rear of the bike. If you look at the list of parts on my XO-1, you'll notice that I use a standard cage Shimano 105 rear derailleur with a fairly wide range triple crank and a fairly wide range cassette.According to the specifications, this should not work, yet I … Get 15% Off Membership →, Shimano only rates that derailleur to 28T, Tech FAQ: Seat height vs. crank length; cassette swaps, 10-speed shifters, Technical FAQ: Shimano GRX and 12-speed compatibility, plus carbon braking, Technical FAQ: SRAM AXS Flattop chain compatibility. — Sal. The medium cage Tiagra RD-4700 GS derailleur supports a 10 speed 11-34 cassette when used with a double crank (compact 50/34, mid-compact 52/36). Largest cassette with short cage derailleur? https://www.mantel.com/blog/en/derailleur-capacity-maximum-techcenter Why has Shimano made this so confusing? I love the bike, and braking is terrific. However, the groupset I have bought has the 6870 Di2 short cage rear derailleur, so my question is - can I still use an 11/30t ultegra 8000 series cassette with the short cage 6870 Di2 rear derailleur, or do you need the medium cage rear derailleur if riding the 6870 ultegra series? SRAM makes 2 eTap rear derailleurs, a short-cage that it claims can take a max 28T cog and a “medium” cage that can take a 32T. Yes, you can put that cog on. It fits in a regular short cage derailleur, offers a little love on the climbs and in my opinion, is likely to take over the 11-28T as the new standard. 2. It's "out of spec" per the capacity chart but it works fine. I can even go big-to-big, although I don't do that deliberately (I have done it accidentally, a few times). You can’t use a wide cassette with a short cage derailleur, because of a couple of problems going to the largest ring in the rear (the derailleur may simply be unable to swing far enough to clear a 32T ring).