Going from a triple to a double – what don’t I know?

[TwoWheelsDC]

@hozn 155094 wrote:

Oh, ok. I guess I didn’t know Sram encouraged (had a line of) 1x with rim brakes; I’m sure that’ll be a great upgrade, regardless. Certainly will simplify things. And might lighten things up for you, though I’m guessing weight will be the same. Was it cheaper (or close enough) to go all-in with the new crank rather than just picking up a 1x ring for your current crank? Will the Rival 1 crank use a different bolt pattern (e.g. are those spiderless?). I probably could just google this

If you look at the website for Rival 1, they list both their HRD or their mechanical shifters as options…and AFAICT the only parts they label specifically as “Rival 1” are the crankset, chainrings, and the non-shifting brake lever (both hydro and mechanical). I think the hydro stuff came out at the same time and so they marketed it as a holistic upgrade in that context, but nothing I can see points to any sort of optimization for hydro or whatever.

Keeping my original crank was never an option. It’s crap…about as stiff as a wet noodle and creaky. Also, the current crankset, while theoretically compatible with my Stages PM (it’s GXP spindle, but “Oval Concepts” brand), has 172.5 arms, but my Stages is a 170mm. So I went with a 170mm Rival 1 crankset, which should allow me to put my Stages on this bike (it’s currently on my Cinelli), assuming SRAM didn’t radically change the Rival NDS arms…guess I’ll find out soon enough!

[EasyRider]

@TwoWheelsDC 155052 wrote:

So of course this thread got me thinking about the FD and RD situations on my gravel/commuter bike, both of which have been driving me nuts because neither will run both quietly and shift smoothly…it also reminded me that I was hoping to get a 1×11 drivetrain when I bought the bike, but was only available on much higher end bikes. Finally, it reminded me that I had some OT money to blow without risking my wife’s wrath. So…a SRAM Rival 1 set is now en route to my house. Went with a 42t chainring with 11-36 cassette, which I hope will be well-suited to my commute that has both C&O and a long ass hill…much more lower speed stuff that would’ve made a 50t overkill and necessitated a 42t cog and long cage derailleur out back. Yay impulse buys!

We’re going to need to see before and after pictures.

[vvill]

@TwoWheelsDC 155096 wrote:

Keeping my original crank was never an option. It’s crap…about as stiff as a wet noodle and creaky. Also, the current crankset, while theoretically compatible with my Stages PM (it’s GXP spindle, but “Oval Concepts” brand), has 172.5 arms, but my Stages is a 170mm. So I went with a 170mm Rival 1 crankset, which should allow me to put my Stages on this bike (it’s currently on my Cinelli), assuming SRAM didn’t radically change the Rival NDS arms…guess I’ll find out soon enough!

I have a first-gen Rival GXP Stages 170mm and it fits on both the older Rival crankset on my Raleigh RXS and the newer Rival 22 crankset on my Warbird. The only difference that comes to mind is there are no washers between the pedal and cranks on the Rival 22 arms.

[TwoWheelsDC]

Well that shipped quick…I think this is everything I need:

-crank
-cassette
-rear derailleur
-rear shifter lever
-front brake lever
-fresh cables
-bar tape

I’m keeping my existing Wheels Mfg bottom bracket. Jon, I’ll let you know how it goes!

[TwoWheelsDC]

Done. The hardest part was re-cabling everything. Actual setup of the derailleur was relatively painless. Off to do a shakedown ride now, but man, this new setup looks a million times better.

[hozn]

@TwoWheelsDC 155324 wrote:

Done. The hardest part was re-cabling everything. Actual setup of the derailleur was relatively painless. Off to do a shakedown ride now, but man, this new setup looks a million times better.

Agreed!

I don’t know if you have an easy way to measure it, but I am very curious what the chainline is for that crankset. The fit guide seems to suggest it is less than the 47.5 I would have assumed for a disc-brake-focused group (?)

I am considering getting a Force 1 to replace my Rival (double), but don’t want to change my chain line.

[TwoWheelsDC]

@hozn 155329 wrote:

Agreed!

I don’t know if you have an easy way to measure it, but I am very curious what the chainline is for that crankset. The fit guide seems to suggest it is less than the 47.5 I would have assumed for a disc-brake-focused group (?)

I am considering getting a Force 1 to replace my Rival (double), but don’t want to change my chain line.

Specs say 45.5mm, and just eyeballing it (from roughly center of 86mm BB shell to chainring tooth) was like 44.7 according to my digital caliper…I’d assume enough margin of error in my measurement to trust the 45.5 number.

[hozn]

@TwoWheelsDC 155425 wrote:

Specs say 45.5mm, and just eyeballing it (from roughly center of 86mm BB shell to chainring tooth) was like 44.7 according to my digital caliper…I’d assume enough margin of error in my measurement to trust the 45.5 number.

Interesting. I imagine that it doesn’t matter much on a long-chainstay frame, though I spend most time in the smaller cogs so I will probably stick with a double crankset with a single ring mounted to outside of spider. (Mine both measure 47.5)

[jrenaut]

Is there a clutch derailleur that’s compatible with my Shimano Tiagra 10spd shifter? I’m not even sure how to figure this out.

[bentbike33]

@jrenaut 157891 wrote:

Is there a clutch derailleur that’s compatible with my Shimano Tiagra 10spd shifter? I’m not even sure how to figure this out.

You might try this “compatibility chart” from Shimano if you can figure it out.

[drevil]

@bentbike33 157904 wrote:

You might try this “compatibility chart” from Shimano if you can figure it out.

I have wished for something like this for a long time. Thanks for the link!

[jrenaut]

@bentbike33 157904 wrote:

You might try this “compatibility chart” from Shimano if you can figure it out.

This would be super helpful except now I’m looking at Shimano’s website and it appears that they do not sell a 10 speed road derailleur that will take an 11-42 cassette. This is clearly going to require some more research.

[EasyRider]

I think this $20 WolfTooth bit would allow your existing 10-speed road RD and br—uh, shifter, to handle an 11-40 cassette. Someone will correct me if I’m wrong.
http://www.wolftoothcomponents.com/collections/derailleur-optimization/products/roadlink

No clutch, can’t use a 42t rear cog, but maybe you don’t need those things …

[Sunyata]

@jrenaut 157907 wrote:

This would be super helpful except now I’m looking at Shimano’s website and it appears that they do not sell a 10 speed road derailleur that will take an 11-42 cassette. This is clearly going to require some more research.

I believe the great folks at Bikenetic may have finagled something to make a mountain derailleur work with a road shifter for someone’s cross bike that was swapped to an 11-42 ten speed cassette. You may ask Jan or Pete about it.

[Birru]

@Sunyata 157921 wrote:

I believe the great folks at Bikenetic may have finagled something to make a mountain derailleur work with a road shifter for someone’s cross bike that was swapped to an 11-42 ten speed cassette. You may ask Jan or Pete about it.

I was eyeing Jan’s Raleigh Tamland last week and noticed he had a mountain RD and pulley to adapt the ratio to work with his road STIs. So yeah, definitely talk to them.

[Author]

Posts