Thanks to their light weight performance and ability to run 1x or 2x rings, the Easton EC90 SL cranks remain among our favorites for both road and gravel use. Now, that same tech is trickling down to another level with the introduction of the EA90 aluminum crankset.

Easton EA90 aluminum crankset makes road / gravel / CX ring swaps a Cinch

The concept with the EA90 crankset is exactly the same. Start with a pair of aluminum crank arms with the Cinch direct mount interface and add your choice of rings. You can take your pick of 30mm alloy spindles – including the Cinch Power Meter spindle as an option as well. Easton also says that arm-only options will be avaialble.

Easton EA90 aluminum crankset makes road / gravel / CX ring swaps a Cinch

With all of the parts sold separately, you can choose the chainring configuration best suited for your ride. If 2x is what you seek, their Shifting rings are available in two distinct styles. Road Shifting Rings include a removable Spider built around a 45mm chainline and 2x ring configurations meant for road – 53/39, 52/36, and 50/34 (weights are listed as 255g 53/39, 243g 52/36, 227g 50/34). The Gravel Shifting Rings on the other hand are smaller, so they can get away with a Direct Mount 2x configuration with a 45mm chainline and 47/32, 46/36, and 46/30 combinations (weights listed at 47/32 194G, 46/36 192G, 46/30 182G).

In addition to road or gravel Shifting Rings, the EA90 cranks will be compatible with Easton’s DM 1x chainrings as well. These rings are offered in 38T, 40T, 42T, 44T, 46T, 48T, and 50T, and use a 47mm chainline.

The crank arms themselves are available in 170, 172.5, and 175mm lengths and claimed weights of 534g for a 172.5mm crank w/o rings or BB. Built with a 149mm Q-Factor, the cranks have bottom bracket options for BB86, BSA 68mm, PF30 68mm, BB30 68mm, BBright, and 386Evo, and are available in black only. Pricing is set at $119.99 for the crankset, with rings and BB sold separately.

Easton EA90 aluminum crankset makes road / gravel / CX ring swaps a Cinch

Along with the cranks, Easton has another new addition to the EA90 family with the EA90 & EA90 SL stem. These aluminum stems feature a larger diameter center section for increased stiffness, and a standard 31.8mm clamp diameter with 1 1/8″ steerer diameter. Meant for road, gravel, and CX use, the stems start at 70mm in length, and range up to 120mm in 10mm intervals, while the EA90 gets an additional 130mm version. Featuring a +/-7° rise, the SL version sees the addition of titanium hardware to drop the weight by 10g from 120 to 110g for a 100mm stem.

Easton EA90 aluminum crankset makes road / gravel / CX ring swaps a Cinch
All images c. Easton

Easton EA90 aluminum crankset makes road / gravel / CX ring swaps a Cinch

There’s also a custom integrated Garmin mount that slips through the face plate from the back, and then is held in place as you tighten the stem face place. The price for the EA90 SL stem is listed at $149.99 which includes the ICM Garmin Mount, and while the EA90 stem price is not given, you can assume it’s a bit lower.

eastoncycling.com

16 COMMENTS

  1. Too bad the back of the crank arm is hollowed out, eliminating the possibility of running a 4iiii Precision or Stages power meter, but that might be a deliberate design to force you to use their in-spindle one. Otherwise looks like a nice crank option for the price.

    • Uh…what? There’s threaded shell versions available. Many brands make them, and they typically use 6806 bearings, so no downside. I’m running a Chris King BSA30 on my MTB and it’s been great.

      The real bummer is that there’s still no “mid-size” front derailleur to bridge the gap between mtb and road chainring sizes. Something contoured to fit 38/28 up to 46/36 would be nice. As long as Shimano doesn’t care, we probably won’t see it though. Several companies offer smaller gearing like that, but it’s a poor compromise until that’s sorted.

      • Cage profile is overrated. Campy used to have separate front derailleurs for compact and standard. Turned out the standard one worked significantly better on compact than the “proper” one, so they abandoned it.
        What I think is slightly more relevant is the tooth count difference between the large and small rings. Cross and mountain are 10-12t different. Road these days is 16t. I’d wager that an XTR derailleur, somehow positioned to be on a cross chainring setup, would be unbeatable… If the low limit could be backed off far enough.

    • FWIW, I think the Praxis cranksets are still a better option unless you specifically need the 46/30 chainrings. Less expensive ($240 vs $270) and lighter (the 50/34 claimed weight is the same as the EA90 plus 46/30 gravel rings). And the carbon version is only $65 more than the EA90 for another 100g savings.

  2. i really want to try 30mm crank spindle even my bike using BSA thread.
    but, the most available crank arm only option in my area is shimano. even not much praxis seen in my town.
    but for 30mm spindle option, roadies still more familiar with praxis.
    EA crank definitely will be on my list because i’m cheap so EC still out of budget.
    my experience with raceface alloy crank is nothing but good.
    my opinion for the crank sales, the more crank arm only option. the better the product.
    and still not much option for single chainring 36t road crank.
    11 speed 36t : 10-42 cassete for rough short gravel ride is enough for me.

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