I've been using a 1x9 speed drivetrain on my early 90's Specialized Crossroads for about a year and a half now, and have been really pleased with my gear range and the simplicity of it. Since moving to Hawaii it's been my only bike, so it serves a variety of roles- commuter, errand bike, road bike, and trail bike. I've implemented a quick-swap cockpit system with three different setups- a drop bar Richey Beacon, a Map Ahearne bar, and a Jones loop H-bar, so it sorta feels like I have three different bikes.
Since I use it on the nearby singletrack trail system, I need a decently low gear. I've been very happy with the Sunrace 11-40 cassette paired with a 34t front chainring. With my 40mm wide tires, I've got a gear range from 85" - 23". If I'm using my 45mm knobby Tufo Swampero trail tires, the range is 87" - 24". I use a MicroShift 9-speed downtube shifter paired with a Shimano LX rapid rise, non-clutch, rear derailleur (RD-M580) and a KMC 9-speed chain. Even though the derailleur is only rated to a 34t largest cog, I have no problem at all on the 40t cog. I wonder if it might be due to the rapid-rise function where the spring is the most relaxed in the largest cog, that it's able to handle a +6 tooth increase from the max rating. I've toyed with the idea of maybe adding a small chainring and manually dropping into it when I ride off-road, and that would allow me to have a tighter cluster in the cassette. But like I said, I'm super enjoying this 1x9 system and since I can do all the riding I need with the current setup, I will probably keep it that way for the foreseeable future. Mahalo, ~Mark Kailua, HI On Tuesday, July 23, 2024 at 9:04:08 AM UTC-10 Michael Morrissey wrote: > I think it was Bike Snob NYC who said that a lot of the fun of riding a > Rivendell is combining components that aren't meant to go together and > seeing if they work. On my Rivendell I have a 1x9 drivetrain. I use a SRAM > GX 10 speed clutch derailleur, Silver 1 shifter on a thumbie, a narrow-wide > Wolftooth chainring, a 9 speed Connex chain, and a 34 toothed 9 speed > cassette. It all works great. > > I was wondering what other 1x9 drivetrains people here are using, and if > anyone has experience with any new 1x9 systems. Microshift, Shimano CUES, > and Box components are all new options within the last few years. I'm also > considering a SRAM GX Eagle crankset on my bike. Has anyone tried this with > a 1x9? > > I am also interested in any high-end 9 speed cassettes (like SRAM's PG990, > with an aluminum spider). Anyone holding a NOS one? SRAM has 10 speed > cassettes that are very high end still available, and I might switch to one > of those because of availability. > > Thoughts? > > Michael > > > > > > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/fb5e04dd-04c7-41f8-9814-f68bf48df02en%40googlegroups.com.
