Doing the work isn't the issue for me it’s figuring out what will and won’t work. I have a Rival rear 1x w a White 32 Crank and Sunrace 11x50 cassette. I really want to go 2x with maybe a FSA 30/44. I have no idea how to figure out what rear derailure I would need or if my Rival would or wouldn't work. I know I could go to my LBS but I’d like to learn how to figure this out. Any thoughts / guidance is appreciated.
Gasman wrote:Doing the work isn't the issue for me it’s figuring out what will and won’t work. I have a Rival rear 1x w a White 32 Crank and Sunrace 11x50 cassette. I really want to go 2x with maybe a FSA 30/44. I have no idea how to figure out what rear derailure I would need or if my Rival would or wouldn't work. I know I could go to my LBS but I’d like to learn how to figure this out. Any thoughts / guidance is appreciated.
What drivertrain speed is it? Mechanical or Hydro brakes?
You would need:
Sram 2x Rear derailleur of same drivetrain speeds as you have now.
2x Chainrings/spider for your crank (not familiar with that crank, but assuming it can be switched)
front derailluer
new left shift/brake lever to match the right side one
new cassette
new chain to go with new cassette usually
Basically, almost a complete new drivetrainn. All you reuse is the right shift/btake lever and the crank arms/bottom bracket. Doesn't seem worth the hassle/price. I would just buy a complete new drivetrain, then you can sell/use the drivetrain you have now for a different bike.
Ive learned a lot since this post...things that need to be considered is chainwrap on the derailure (max difference in teeth) chain line etc. my frame, All City Gorilla Monsoon is made specifically for a 1x so chainline is important. Ive since converted the cassette to the eThirteen 9-46 11 speed (20-98 gear inches) but its not enough high end with a 32 crank. I’m working with my LBS to convert it to a 9-39 cassette using a bar end friction shifter for a 26/42 crank which should give me 18 - 129 gear inches. This is a great spread as i ride rode and gravel with the same bike. My Slate has a 52/36 crank with a 11-40 cassette and a XT derailure with a wolf tooth and that has 23 - 123 gear inches. I dont know what the numbers mean but I know if i invest in going 2x i want to at least be at my Slate!
