Awhile back, I wanted to have some ultimate "granny gears" as absolute insurance for climbing hills without spending a lot of money. I came across the Avid Micro-adapter 74/58 bcd granny gear adaptor for a 20T ring. After sometime of playing around with it and getting a lot of advice from over on the IBOB LIST (https://groups.google.com/g/internet-bob/c/-C-kw8MfM2Y/m/xW5gSLXUAgAJ), I succeeded in doing so.
These are my results. I have a Rivendell 52cm Clem Smith Jr. "L" bicycle with a the standard SILVER 173mm crank set with rings of 34/20T with a SunRace 9 speed cassette 11-40T in the back. My front derailleur is a Shimano CX70 and my rear derailleur is Shimano Deore RD951 9 speed SGS long cage with a Wolf Tooth Road Link. This set-up works very well for me for my cycling needs, after years of running a triple crank set. The last one I ran was a 172.5mm T. A. Zephyr 42/36/20T. I don't feel the need to run a triple anymore. There is nothing like having a lot of low gears and plenty of water bottles and cages to hold them. One never knows where my adventures will take me. How low can you go ? Kim Hetzel. On Wednesday, January 10, 2024 at 11:13:19 AM UTC-8 Bill Schairer wrote: > "That's like asking why someone wants a longer/shorter stem..." > > Which could be a perfectly valid question to someone who has stated he has > limited knowledge of such things. The reason for the goal may determine > the method of achieving it. If the person I actually asked the question of > takes offense, I apologize. > > Bill S > San Diego > On Wednesday, January 10, 2024 at 10:09:37 AM UTC-8 Josiah Anderson wrote: > >> Uhh... because lower Q works better for some people? That's like asking >> why someone wants a longer/shorter stem... >> >> Adam, with the VO cranks (if we're thinking of the same ones) if you can >> get a set of arms without rings, TA rings will fit, which are available in >> any tooth count down to 26 IIRC. 40/26 is definitely possible with the TA >> 50.4bcd rings. You could also watch eBay etc for used TA cyclotouriste/pro >> 5 vis cranks, which is what the VO and SunXCD cranks are copies of. >> >> Josiah Anderson >> Missoula MT >> >> >> Le mer. 10 janv. 2024 à 9:47 AM, Bill Schairer <comm...@gmail.com> a >> écrit : >> >>> Since you stated you are a bit new to all of this, I am curious as to >>> exactly why you are so focused on a lower Q? >>> >>> Bill S >>> San Diego >>> >>> On Wednesday, January 10, 2024 at 9:26:06 AM UTC-8 Adam wrote: >>> >>>> Thanks, >>>> >>>> Great ideas already. I have thought about the VO cranks, but want >>>> slightly lower gearing if I'm going to the trouble of swapping. >>>> >>>> For Ron, or anyone else, does swapping the large ring for a bash guard >>>> allow for a lower Q? I assumed that would stay the same? >>>> >>>> I'm going to look at the Alex cycle option, your pic is exactly what I >>>> want to do. Is there a clever way to piece something like that together >>>> from older stuff on eBay? Guessing it may take knowledge I don't have >>>> >>>> Adam >>>> >>>> On Wednesday, January 10, 2024 at 11:15:31 AM UTC-6 Ron Mc wrote: >>>> >>>>> adding a ps - another use of your triple crank, there are some >>>>> virtually weightless bash guards out there if you want to make it a >>>>> compact >>>>> double. >>>>> >>>>> [image: Rw6vTY9.jpg] >>>>> >>>>> On Wednesday, January 10, 2024 at 10:44:54 AM UTC-6 Ron Mc wrote: >>>>> >>>>>> Hi Adam, >>>>>> take a look at VO Rando crank. >>>>>> If you can find them, Sun XCD makes their 50.8 BCD and chainrings, >>>>>> which I'm running on 2 bikes. . >>>>>> I was on SJS Cycles last night looking at rings, and noticed they >>>>>> still have some T/A-5 chainrings. >>>>>> On Wednesday, January 10, 2024 at 10:15:06 AM UTC-6 Adam wrote: >>>>>> >>>>>>> Hi all, >>>>>>> >>>>>>> Adjacent to the triples thread, I'm thinking about moving away from >>>>>>> a triple to a double in order to get a lower Q. >>>>>>> >>>>>>> What are options for double cranksets that are around 40/26 or so? I >>>>>>> think that would be doable with the Rene Herse cranks, but too much $$$ >>>>>>> for >>>>>>> me. Are there any cheaper options that will do that and give me a q in >>>>>>> the >>>>>>> 140s? >>>>>>> >>>>>>> Second, drivetrain stuff is a little new to me. What determines how >>>>>>> small a q factor a specific bike can have? I'm assuming chainstays play >>>>>>> a >>>>>>> role here? This hypothetical project is for a Hillborne, so I'd be >>>>>>> curious >>>>>>> what folks have used to get low q on their Hillbornes. I'm assuming I >>>>>>> may >>>>>>> have to change the BB as well. >>>>>>> >>>>>>> Thanks! >>>>>>> >>>>>>> Adam >>>>>>> >>>>>> -- >>> 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-bun...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/rbw-owners-bunch/a82cfe04-9719-4991-9de9-ad164a0c59d6n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/rbw-owners-bunch/a82cfe04-9719-4991-9de9-ad164a0c59d6n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> -- 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/14ca338e-c123-473f-aee3-f9c9ac574f50n%40googlegroups.com.
