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Easton EC70 SL Carbon Road Wheel - Clincher

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Item # EAS000M

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Item # EAS000M


By now, the aerodynamic benefits of deep section rims are obvious and undeniable, but there are compromises associated with both aluminum and carbon fiber constructions. With the EC70 SL wheel, Easton has tackled those compromises head on to deliver a wheelset that truly offers the best of both worlds. The structural carbon fiber extension adds stiffness and aerodynamic slip without a weight penalty, while the aluminum braking track provides superior braking to a full carbon fiber rim. The SLs roll on Easton's proven R4 hubset, and they're connected using Sapim's storied spokes. They're tensioned and trued using Easton's proprietary acoustic tuning method, for unparalleled longevity and supreme trueness. At 1660 grams for a set, the EC70 SLs are more than light enough to be competitive, and the 42mm rim depth makes these highly versatile. Think of them as a quiver-killer wheelset that's ready for seasons of problem-free racing.

The EC70 SL rim is a feat of engineering that combines the strongest attributes of a deep section carbon rim and the best alloy clinchers. In other words, the aerodynamic efficiency and light weight that make carbon rims so appealing is augmented by an aluminum brake track, for superior braking power in all conditions. But unlike many other hybrid carbon/aluminum rims, this isn't a barely-functional clip on fairing. The construction starts with Easton's proprietary EA90 alloy being extruded into the aluminum rim, which features an H shaped profile. After being rolled into a circle, the EA90 rim is molded into EC70 unidirectional carbon, which boosts the rim depth to a generous 42mm deep. This results in a carbon fiber extension that's not only effective at slicing through air-- it becomes a structural part of the rim, increasing the strength and stiffness. The spoke holes are recessed into the rim, which pulls the nipples out of the path of the passing air, which further reduces turbulence, and makes you faster.

The EC70 SL wheels roll on Easton's time-tested R4 hubs, which feature sealed cartridge bearings for smooth rolling and minimal maintenance. The Shimano compatible alloy freehub body keeps the weight to a minimum, and the oversized driveside hubshell stiffens the wheelset under acceleration, ensuring that none of your precious watts go to waste. Holding it all together are Sapim's excellent butted spokes. They're straight pull, which not only reduces weight, but makes them as strong and stiff as possible by eliminating the J bend found on traditional spokes. The storied racing heritage of Sapim's spokes spans the gamut of racing disciplines, which will instill confidence in even the biggest skeptic. And they're acoustically tuned using Easton's proprietary method, which takes into account not only the straightness in a truing stand, but a perfect balance of tension between each and every spoke. That ensures that they're perfectly true, and that they'll stay that way as long as physically possible. In case it wasn't clear, this is a racing wheelset that'll put in the miles without complaint.

The Easton EC70 SL Carbon Road Wheel is sold individually as either a front or rear, with a Shimano compatible freehub body.

Tech Specs

[rim] carbon fiber, [brake track] aluminum
Rim Width:
[external] 20 mm, [intternal] 15 mm
Rim Depth:
42 mm
Front Hub:
Easton V5
Front Hub Type:
Rear Hub:
Easton V5
Rear Hub Type:
Shimano/SRAM 9/10/11
Spoke Nipple Material:
Front Spoke Count:
20 radial
Rear Spoke Count:
24 1-cross non-drive side;2-cross drive side
Axle Type:
Brake Compatibility:
Rotor Compatibility:
Complete Set Weight:
1630 g
Recommended Use:
road racing and cyclocross
Manufacturer Warranty:
1 year

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Easton Rear Hub seal Sucks

  • Familiarity: I've put it through the wringer

I would never recommend Easton. These guys are arrogant and will not admit that their real hub seal design is flawed. Do yourself and your friends a favor. Never buy or recommend Easton products.

Easton Rear Hub seal Sucks
Avg. ride time: 5h 16m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

A good everyday aero wheelset

  • Familiarity: I've put it through the wringer

I have about 4,000 miles on a set and really don't have many complaints. I've done about a dozen races on them and a lot of training miles.

PROS: They are stiff, fairly light, deep enough to offer some aero benefit (without being too deep to use as an everyday wheelset), sound good, look great, brake well, have stayed true and offer a pretty comfortable ride. Rear hub is easily adjusted with a simple cone wrench in about 3 seconds.

CONS: I will echo another reviewer - don't ride these in heavy rain - the hidden spoke nipples, while supposedly more "aero", allow a lot of water to enter into the rim and your 1600gram wheelset can turn into a 3000gram set in a hurry. There's no way to drain them unless you pull the tire. However, I've only found myself in this situation twice so not really a huge deal. Secondly, these don't offer wide rim technology that are found on most new wheelsets, so that's a trade-off.

In summary, I wouldn't hesitate recommending these to someone looking for a durable wheelset that looks the part if they acknowledge that they're making a few comprimises. I choose these over my other wheels (RS80 C24s) almost every time and plan to put several thousand more miles on them . If you can snag them for under $800 for the set like I did, you won't have any regrets.

A good everyday aero wheelset
Avg. ride time: 5h 52m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


  • Familiarity: I've put it through the wringer

I have about 10,000 miles on a set of these. They are pretty good, although I've had a broken spoke and had bearings go bad in the rear wheel. These wheels are great when it's nice out. Not so good in the rain. They fill up with water and don't drain unless you pull the tube and tire. Cartridge bearings seem great, but mine didn't hold up well at all.

Easton sucks

  • Familiarity: I've used it several times

Easton has had my wheels for 7 weeks for warranty repair. Numerous calls and emails for status ignored.Had to threaten lawsuit in order for them to respond. They then told me as a rough estimate that it would take three more weeks. Might be good wheels but customer service sucks.

Great wheels, but save yourself a bundle

  • Familiarity: I've used it several times

I've had these wheels for a few months now and love them - smooth hubs, modest weight for an aero wheel, and great looking. But save yourself a bundle - currently $750 at Performance Bike...for BOTH wheels!