I have an Easton EC90 cinch crankset set up with 50/34, which is fine for maybe half the races I will do with the bike and for road use, which it sees. But I'd love to be able to swap out for 46/30 for the other races and already have a spare Race Face cinch spider in 104bd-64bd. Every time I search, the results are totally clogged with narrow-wide for 1x. Anyone know of good 46/30 chainring options that will work on that standard four-arm cinch spider?
TA still makes 64/104 chainrings for 10/11 speed - they're called the Chinook10. But you probably have to order them from Europe, and the smallest inside 104 ring they make is a 32.
drwelby wrote:TA still makes 64/104 chainrings for 10/11 speed - they're called the Chinook10. But you probably have to order them from Europe, and the smallest inside 104 ring they make is a 32.
What cassette are you running? It might be easier to swap cassettes or shift in a bigger cog (e.g. you have an 11-32, and you put a 40 cog behind the cassette and drop the 11 to give you a 13-40).
I actually wrote to NSB to ask if they would consider making a spider for gravel applications (meaning road chainline, mtb double rings) . Never got the answer. But I suppose if enough people asked the same question...
drwelby wrote:What cassette are you running? It might be easier to swap cassettes or shift in a bigger cog (e.g. you have an 11-32, and you put a 40 cog behind the cassette and drop the 11 to give you a 13-40).
I agree that swapping out cassettes is an easier solution. I've never been fond of 16 tooth gap between chain rings. I like to have some overlap between the gear ranges of a 2x set up. I've found that the CX setup of 46/36 is almost ideal for my type of rolling hilly terrain. I currently run a SRAM eTap wifli 2x with a Ultegra 6800 46/36 up front. Then depending on the terrain, I'll run either an 11/36, 11/32, or an 11/28 cassette in the back. The eTap wifli rear der. is spec'd. for 32T, but it works well with 36T with some fussing with the b screw. I also have a 1x setup with a Wolftooth 40T 1x chainring and a 11-40 cassette using a 6800 Mid cage mech. der+ WT Roadlink, on my backup gravel rig. While it's true, that a wider spacing on the cassette give you wider gaps in the gear set, which could be an issue if you race or do fast group rides, I find that when riding alone on backroads, it really isn't much of a problem. I guess it depends on your riding style or preferences. I'll take the wider gaps to get the more useful gear ranges on my chain rings. When I had set ups with 16T gap between the chain rings, I found that I was doing a lot of cross chaining, and had a greater risk of dropping my chain when I was not being careful.
oleritter wrote:You did say you have 104/64 bcd, right? You can get a TA Chinook in 46t/104bcd and 30t/64bcd.
The 46 is an outside position ring and has shift pins on the inside so you'd have to press them out to run it flipped on the inside position. Then I'd worry about the 30t ring hitting the frame in the granny position.
The 46 is an outside position ring and has shift pins on the inside so you'd have to press them out to run it flipped on the inside position. Then I'd worry about the 30t ring hitting the frame in the granny position.
And guessing or assuming the OP has determined this crank can work with his bike, so just trying to answer the original question "where to find chainrings".
bobknh wrote: I agree that swapping out cassettes is an easier solution. I've never been fond of 16 tooth gap between chain rings. I like to have some overlap between the gear ranges of a 2x set up. I've found that the CX setup of 46/36 is almost ideal for my type of rolling hilly terrain. I currently run a SRAM eTap wifli 2x with a Ultegra 6800 46/36 up front. Then depending on the terrain, I'll run either an 11/36, 11/32, or an 11/38 cassette in the back. The eTap wifli rear der. is spec'd. for 32T, but it works well with 36T with some fussing with the b screw. I also have a 1x setup with a Wolftooth 40T 1x chainring and a 11-40 cassette using a 6800 Mid cage mech. der+ WT Roadlink, on my backup gravel rig. While it's true, that a wider spacing on the cassette give you wider gaps in the gear set, which could be an issue if you race or do fast group rides, I find that when riding alone on backroads, it really isn't much of a problem. I guess it depends on your riding style or preferences. I'll take the wider gaps to get the more useful gear ranges on my chain rings. When I had set ups with 16T gap between the chain rings, I found that I was doing a lot of cross chaining, and had a greater risk of dropping my chain when I was not being careful.
Lot of good suggestions and tips here. The cassette simply isn't a big issue. I have a mid-cage ultegra rear that will take up to 34 and I have no problem with having several sizes and swapping them out... but for several events I know that I want a one-to-one and frankly what Im thinking is 46-30 in front and one of those fancy new dura-ace 11-30 cassettes is going to get me a pretty nice setup with minimal gaps and pretty lightweight parts front and rear.
Not quite sure I get the granny gear location thing but def will try the spider to see what fit looks like.
I could be wrong, but it seems almost inevitable that Easton will develop some option for this since the crank seems aimed at the adventure/gravel end of the road market.... what with its various 1x options.
oleritter wrote:And guessing or assuming the OP has determined this crank can work with his bike, so just trying to answer the original question "where to find chainrings".
the crank def works with the bike, at least in its 1x and standard 50/34 modes. have not tried the FSA spider on it as don't have chainrings to check chainline and clearance issues yet.
the crank def works with the bike, at least in its 1x and standard 50/34 modes. have not tried the FSA spider on it as don't have chainrings to check chainline and clearance issues yet.
Well come back and let us know if you get this running.
Well come back and let us know if you get this running.
Will do, as I think whatever the answer, some will find it useful at least for the short term, until someone comes out with a more standard cinch solution for sub-compact.
the crank def works with the bike, at least in its 1x and standard 50/34 modes. have not tried the FSA spider on it as don't have chainrings to check chainline and clearance issues yet.
Sorry, meant "raceface" spider. I have conflated those two companies for as long as I have been around bikes for no discernible reason. somehow mentally I lump then into a category. Its the standard Raceface 2x cinch spider.
I know the OP was asking about options for a particular crank, but for those interested in custom chainrings combinations and aren't committed to a crank yet, take a look at White Industries cranks. Very innovative with total flexibility in chainring combinations.
