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EC90 ROAD SERIES
EC90AERO 55 | EC90SL | EC90SL DISC
PEOPLE SAY
‘YOU SHOULDN’T
RE-INVENT
THE WHEEL…’
WE DID ANYWAY
A NEW LINE OF HIGH-END ROAD
WHEELS ENGINEERED FOR
SUPERIOR AERODYNAMICS, WEIGHT,
AND DURABILITY.
When you set out to make the strongest, lightest
and most aerodynamic wheels possible, there’s no
such thing as a trivial detail. That’s because a wheel
isn’t a simple component, but rather a collection of
several distinct components, each of which must
be perfectly formed, matched and assembled.
Our new race-ready road wheels are as light
as many competition wheelsets, yet boast the
strength of the most durable training wheels. Every
component of our new EC90 line of wheels has
been designed with durability in mind—the resin in
our rims, the super wide bearing span in our new
Echo hub, the deliberate cross-lacing pattern of
our Sapim spokes—everything.
HERE’S HOW.
EC90Road Series
WHITE PAPER
3
FANTOM RIMS
ENGINEERED FOR
REAL-WORLD
AERODYNAMICS
50-70MM FRONT WHEEL IN TT FRAME
Wind Average
Drag (g)
Time Savings
over 40km TT (s)
55
1345
371
32
2015 EC90 Aero 55 Clincher
55
1630
381
29
18
60F / 70R
1549
411
Hed Stinger 5 Tubular
50
1545
422
13
Zipp 404 Firecrest Tubular
58
1445
426
12
2012 EC90 Aero Tubular
56
1335
458
0
Note: Test results from San Diego Low Speed Wind Tunnel. Values include drag from strut fixtures
and frameset. Front wheels tested with HED Jet Disc rear wheel in BMC TM01 frame/fork. Tested
with Continental Podium 22 tubular or Hutchinson Atom 23 tubeless clincher tires.
Repeatability ± 6g (95% confidence interval).
70-90MM FRONT WHEEL IN TT FRAME
Rim Depth
(mm)
Wheel Description
Aerodynamicist Len Brownlie and the Easton
engineering team designed the Fantom rim using
Wind Averaged Drag (WAD)— an analytic tool
originally developed within the automotive industry
during the 1970s and introduced to the sporting
goods industry by Brownlie in 2009. WAD averages
the wheel’s aerodynamic drag across all possible
wind angles.
Weight (g)
Wind Average
Drag' (g)
Time Savings
over 40km TT (s)
21
Bontrager Aeolus 7 D3 Tubular
70
1518
425
Hed Jet 9 Clincher
90
1870
425
21
Hed Stinger 9 Tubular
90
1692
441
15
2015 Easton EC90 Aero 55 Tubular
55
1345
444
14
85F / 95R
1545
452
11
Bontrager Aerolus 9 D3 Tubular
90
1606
453
11
Mavic Cosmic CXR 80 Tubular w/ C01 blades
80
1630
455
10
8
Enve 8.9 Tubular
Zipp 808 FC Tubular
82
1630
460
Hed 3 (trispoke) Clincher
54
1850
478
1
2012 Easton EC90 TT Tubular
90
1440
482
0
Note: Test results from San Diego Low Speed Wind Tunnel. Values include drag from strut fixtures and
frameset. Front wheels tested with disc rear wheel in time trial frameset with Continental Podium 22
tubular or Hutchinson Atom 23 tubeless clincher tires. Drag values normalized to standard conditions:
101kPa (sea level) and 20deg C (68deg F)... divide by 1000*Q/g = 11020 Pa to get Cd*A. WAD’ is the
calculated average of drag values for all possible wind angles (phi: 0-360deg) where the resultant vector
from wind speed (the average North American wind speed = 6.6MPH) combined with the rider’s ground
speed is 30MPH. Time savings are estimated for flat TT course with wind+ground speed = 30MPH.
Repeatability +/- 3g (95% Confidence Interval)
We experimented with WAD, over the course of
several years, a myriad of rim depths, widths and
profiles until one combination stood out above
the rest as the best: strong, yet very light, very
aerodynamic and incredibly stable in crosswinds. The
Aero55 was born. For the EC90 SL we went back
to the wind tunnel and experimented with different
rim depths with a greater focus on making an ultralight wheel that is still maintains the aerodynamics
characteristics of the Aero55. That same blunt
shape has been maintained across our new high-end
line of road wheels: the Fantom.
FANTOM WITH A VARIETY OF TIRES
Tire
Wind Average
Drag (g) 30mph
Time Savings over
40km TT (s)
2015 EC90 Aero 55 Clincher
Bontrager R4 Aero Clincher
364
35 seconds
2015 EC90 Aero 55 Clincher
Zipp Tangente Clincher 21
368
34 seconds
2015 EC90 Aero 55 Tubular
Zipp Tangente Tubular 21 mm
370
33 seconds
2015 EC90 Aero 55 Tubular
Continental Podium TT 22
371
32 seconds
32 seconds
Wheel Description
FOURTEEN TIRES
...
COUNTLESS
COMBINATIONS
& RESULTS
EC90Road Series
WHITE PAPER
Weight (g)
2015 EC90 Aero 55 Tubular
Enve 6.7 Tubular
Every wheel product has a specific yaw angle or
“sweet spot” at which it’s going to be particularly
aerodynamic. What matters most is how
aerodynamic your wheelset is on average. The wind
– and you – constantly changes direction on your
rides. You don’t need a wheel that’s fast at just one,
random wind angle. You need a wheel that’s flat-out
fast in all conditions.
4
Rim Depth
(mm)
Wheel Description
We tested the tubular and clincher versions (as well
as a range of competitor wheels) with six different
tubular and eight different clincher tires and found
that the results of those wind tunnel tests varied
dramatically depending on which tire was being used.
We didn’t simply grab the tire that produced the
least amount of drag on our new clincher and
tubular Fantom rims. Instead, we asked ourselves,
“Which tire would riders actually use out there
on the road?” Most riders gravitate towards wellrounded tire models, so we picked control tires that
were readily available, modestly priced and popular
with riders. For the tubular wheels, we chose the
Continental Podium TT 22mm. For the clincher
wheels, we measured all contenders with the
Hutchinson Atom 23 tubeless.
2015 EC90 Aero 55 Tubular
Vittoria Corsa Evo-Ks Tubular
372
2015 EC90 Aero 55 Tubular
Zipp tangente tubular 23 mm
374
31 seconds
2015 EC90 Aero 55 Clincher
Hutchinson Atom 23 mm RT clincher
381
29 seconds
28 seconds
2015 EC90 Aero 55 Tubular
Continental Competition Tubular 22
383
2015 EC90 Aero 55 Clincher
Hutchinson Fusion3 23 mm RT Clincher
386
27 seconds
2015 EC90 Aero 55 Clincher
Maxxis Padrone RT Clincher
388
26 seconds
2015 EC90 Aero 55 Tubular
Velo Flex Carbon Tubular
398
22 seconds
2015 EC90 Aero 55 Tubular
Continental Competition Tubular 25
405
20 seconds
2015 EC90 Aero 55 Clincher
Zipp Tangente Clincher 23
428
11 seconds
2015 EC90 Aero 55 Clincher
Vittoria Open Corsa 23c Clincher
437
8 seconds
2015 EC90 Aero 55 Tubular
Continental Competition 22
478
0 seconds
FANTOM RIM
STABLE NO MATTER WHICH WAY
THE WIND BLOWS
We tested the Fantom shape in several different rim
depths and found the gains of a rim beyond 55mm to
be miniscule—yes we could shave a couple grams of
drag, but we’d also add weight and perhaps create a
less stable wheel in certain conditions. The Fantom is
an exercise in balance—balancing weight, aerodynamics
and stability into the best overall package.
Depth of the rim is not the only factor at play in the
matter of stability; rim shape also has an impact here.
The Fantom possesses a much curved and almost oval
profile that blends smoothly with the shape of the tire.
As far as the wind is concerned, the rim and tire form
an almost continuous profile, which is why the shape
proves so aerodynamic.
30-50MM WHEELSET IN ROAD FRAME
Rim Depth
(mm)
Weight (g)
Wind Average
Drag' (g)
Time Savings
over 40km TT (s)
2015 Easton EC90 SL Tubular
38
1167
693
34
Hed Stinger 4 FR Tubular
46
1381
703
31
Zipp 303 FC Clincher
45
1540
712
27
26
Wheel Description
Zipp 303 FC Tubuar
45
1310
715
Mavic Cosmic Carbone 40 Clincher
40
1545
716
25
2015 Easton EC90 SL Clincher
38
1473
718
25
Enve SES 3.4 Tubular
35F / 45R
1335
744
15
Zipp 202 FC Clincher
32
1380
748
13
Enve SES 3.4 Clincher
35F / 45R
1482
748
13
46
968
750
12
Bontrager Aeolus 3 D3 Clincher
35
1479
753
11
Mavic Cosmic Carbone Ultimate Tubular
40
1185
759
9
FFWD F4R Tubular
45
1281
760
8
2012 Easton EC90 SL Tubular
38
1250
782
0
Reynolds RZR 46 Tubular
Note: Test results from San Diego Low Speed Wind Tunnel. Values include drag from strut fixtures and
frameset. Wheels tested as front+rear sets in road race frameset with Continental Podium 22 tubular
or Hutchinson Atom 23 tubeless clincher tires. Drag values normalized to standard conditions: 101kPa
(sea level) and 20deg C (68deg F)... divide by 1000*Q/g = 11020 Pa to get Cd*A. WAD’ is the calculated
average of drag values for all possible wind angles (phi: 0-360deg) where the resultant vector from wind
speed (the average North American wind speed = 6.6MPH) combined with the rider’s ground speed is
30MPH. Time savings are estimated for flat TT course with wind+ground speed = 30MPH. Repeatability
+/- 2g (95% Confidence Interval)
6
EC90Road Series
WHITE PAPER
THE BLUNT NOSE OF THE FANTOM RIM IS DESIGNED FOR
MORE LAMINAR AIR FLOW IN CROSS WINDS. THIS “CLEAN SHAPE” EXHIBITS
THE BEST STABILITY IN CROSSWINDS.
DURABLE FROM THE INSIDE OUT:
THE ECHO HUB
DURABLE BEARING ARCHITECTURE
The Echo is considerably wider than that of the
majority of hubs on the market today. The Echo hub
has an extra-wide bearing stance of 95 millimeters that
massively increases the lifespan of the hub bearings.
By reducing the load on the bearings, it allows for
the use of smaller diameter bearings to save weight
while balancing durability and performance. The
end result? Longer, smoother and more consistent
bearing performance.
ALL OF OUR NEW HIGH-END RIM BRAKE ROAD WHEELS ARE EQUIPPED WITH
EASTON’S AWARD-WINNING ECHO HUB
Easton Custom 6901 C0
Sealed Cartridge Bearing
COMPARATIVE BEARING SPANS
SHIMANO
DURA ACE
95mm
EASTON
NO ADJUSTMENTS. NO HASSLE.
The Echo features full steel radial bearings for
longevity, practicality, and ease of serviceability.
Ceramic hybrids may sound nice in theory; however,
they act more like rocks along a metal tube, wearing
down the cartridge and developing play. With
this new bearing system, we were able to machine
down to within microns of zero internal clearance to
produce a hub that requires no preload adjustment.
Simply put, you can hammer on these wheels
without worrying about hub play. Just ride.
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EC90Road Series
WHITE PAPER
MAVIC
DT SWISS ZIPP
FASTER, STIFFER AND LIGHTER
The Echo features a redesigned bigger hub shell and
driver engagement that allowed us to use thinner
walls and change the drive ring and pawl orientation.
By reversing the drive mechanism (the pawls are
attached to the hub shell and the drive ring on the
cassette body) we were able to give the Echo a
quicker, 7-degree engagement (as opposed to our
previous 12-degree design). This also distributes the
drive forces in a more tangential direction directly
underneath the crossed drive-side spokes, resulting
in a tighter, torsionally-stiffer feeling wheel. Finally,
redistributing those drive forces enabled us to also cut
the axle weight down from 47 grams to 11 grams. Or
to put that in plain English: faster, stiffer and lighter.
Easton Custom 6801 C0
Sealed Cartridge Bearing
Easton Custom 6901 C0
Sealed Cartridge Bearing
COMPATIBLE WITH:
Shimano 9/10/11 speed | SRAM 9/10/11 speed | Campagnolo 9/10/11 speed
FASTER | STIFFER | LIGHTER
THE VERY
BEST BRAKING
OUR LITTLE SHOP OF TORTURES
We spent six years creating the technology required
to make carbon clinchers perfectly safe under
extreme and extended braking; doing so required,
for starters, that we invent a testing fixture and
protocol designed to simulate hard, prolonged
braking on long, steep descents. In our testing
fixture, a wheel (with tire mounted) is spun at
600 watts for two miles with brake caliper loads
adjusted to maintain constant pressure on the rim’s
brake track. Or to phrase that more simply, imagine
pedaling down a mountain with your brakes deathgripped for two, non-stop miles. That’s what our
machine simulates and in doing so, it sends rim
temperatures into the stratosphere. We routinely
destroy competitors’ wheels before finishing the first
test cycle. It’s brutal.
During testing, we monitor the temperature of the
rim surface as it exits the brake pads on both sides.
All loads and temperatures are recorded with one
sample per second. We also measure rim width
before and after the test.
THE STRONGEST CARBON CLINCHER
ON THE MARKET
Once we built the perfect torture test (it absolutely
mangles wheels), we needed to create technologies that
would enable our wheels to actually survive the tests.
The result is a proprietary carbon laminate on both
our clincher and tubular carbon rims that’s designed
to stay rigid under high heat conditions—up to
an extraordinary 500-degrees Fahrenheit. Our
proprietary carbon laminate pulls heat through the
system and reduces the effect of heat on carbon
sidewalls. Essentially our carbon rims feel like
aluminum rims when you’re on the binders.
We don’t make that claim lightly—we’ve tested
plenty of our competitors’ wheels and all, with the
exception of our EC90 Aero55, EC90 SL wheels and
Zipp’s 404, have failed before making it to the test’s
two-mile end point. Our EC90s are, by contrast, so
good that they routinely withstand this punishing
test twice and remain in ride-worthy condition.
10
EC90Road Series
WHITE PAPER
DISC BRAKES: COMING TO THE PRO PELOTON
Disc brakes have largely been adopted by cyclocross
since the change in UCI rules for ‘cross; the 2015 Elite
Cyclocross World Championships were won on disc
brakes by both elite men and women. Expect to see
disc brakes in the pro peloton in the coming seasons.
Making a disc brake road wheel is not the same as
slapping a mountain bike hub on a traditional road
rim – this is especially true for carbon rims. The
Achilles Heel of carbon road rims has been braking
performance and heat dissipation. The switch to disc
brakes completely eliminates these issues but adds new
design considerations related to the increased braking
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EC90Road Series
WHITE PAPER
forces of disc brakes. Furthermore, the EC90 SL disc
rims use a completely different resin that improves
stiffness and durability possible since controlling heat
on the rim is not as necessary with a rotor.
EC90 SL disc wheels move from 16 radially laced
spokes to 20 spokes on the front, and from 20 to 24
spokes on the rear, in a pattern designed to prevent
the hub from twisting in relation to the rim, reducing
spoke and rim fatigue while improving braking
performance whether you’re descending the steep
wet roads or modulating your speed on a slippery
‘cross course.
THERE’S NO SUCH THING AS
A “TRIVIAL” DETAIL
We designed each component to mesh perfectly
with the next. We fixated on things like the bevels
that finish off the edges of the hub flange spoke
holes—redesigning them a half dozen times to balance
tolerance, finish and accuracy and ensure that our
spokes meshed precisely with the Echo hub.
PATENTED EYELET-NIPPLE SYSTEM
In our patented system the nipples actually thread into the
eyelets, which distribute the loads more evenly around a
larger area of the rim; this reduces stress and lets us use less
material without sacrificing strength. It also enabled us to
attach the spokes to the rim without penetrating the tire bed.
THE BEST SPOKES POSSIBLE
The EC90s are laced with the highest quality steel
spokes available: double-butted, straight-pull Sapim
spokes. The bending process that creates J-bend spokes
stresses the spoke before it ever hits the road. Countless
in-house fatigue tests and field trials have proven that
straight-pull spokes have a much higher fatigue life.
LACED FOR STIFFNESS AND RELIABILITY
Spoke configuration is absolutely critical to rear-wheel
durability, which is why we tested different lacing patterns
when developing both EC90 SL and EC90 Aero 55.
The front wheel features 16 radially-laced spokes, which
keeps weight to a minimum, while the 20 cross-laced spokes
on the rear rim-brake wheel will withstand the torque of
pedaling and the most brutal riding conditions possible.
This lacing pattern, however, also provides a tangible
improvement in ride quality—they increase the stiffness of
the wheel. The moment you stand on the pedals, there’s an
immediate “snappiness” to both wheelsets.
100% HAND BUILT TO
THE HIGHEST STANDARDS
High, uniform spoke tension is key to building strong wheels
that stay true. These wheels are 100-percent hand built and
acoustically tuned by Easton-trained builders.
RIDE
TUBELESS OPTION, ZERO COMPROMISE
Thanks to our patented spoke nipple system, there’s no need to
resort to rim strips to create an air-tight seal. They are easy to
set up tubeless and provide absolutely trouble-free performance.
Since no rim-strip or tape is required, our system is lighter
without penalty. This system is tubeless when you want it, but
still perfectly compatible with traditional tubed tires.
EC90Road Series
WHITE PAPER
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LEADING
AERODYNAMICS
EC90 AERO 55 WORLD
Talk about features! These wheels have everything: leading aerodynamics, certified
Road Tubeless™ compatibility without rim strips, unrivaled braking performance,
outstanding durability and competitive weight. Don’t take our word for it—check
out the results from our exhaustive wind tunnel testing. Riding these wheels in a
40-kilometer time trial saves a whopping 14 seconds over the next fastest wheel,
Enve’s 6.7 tubular. Riders concerned with finishing times and power output can’t
afford not to buy these groundbreaking new wheels.
These aren’t simply race-day only wheels, they’re built strong. Easton’s industryleading carbon lay-up process provides smooth, consistent braking. Like every
high-end wheel in the Easton line, EC90 Aero 55 wheels are entirely built by
hand from start to finish and acoustically tuned. These wheels combine top-end
materials, a methodical build and an advanced rim design. They are extraordinarily
fast wheels that will roll true for years to come.
55mm TUBULAR
55mm TUBELESS CLINCHER
WHEELSET WEIGHT
FINISH
TYPE
CARBON TUBULAR
RIM MATERIAL
RIM DEPTH
INTERNAL RIM WIDTH
EXTERNAL RIM WIDTH
SPOKES
FRONT SPOKE PATTERN
REAR SPOKE PATTERN
BRAKING SURFACE
NIPPLE TYPE
FRONT/rear HUB
BEARING TYPE
16
1345g
MATTE CARBON, WATER TRANSFER DECALS
EC90Road Series
WHITE PAPER
EC90 CARBON
55mm
NOT APPLICABLE
28mm (AT BRAKE TRACK)
SAPIM CX-RAY, STRAIGHT-PULL
16 / RADIAL
20 / 1x ND / 2x DS
CARBON
DT INTERNAL ALLOY
EASTON ECHO
SEALED CARTRIDGE BEARINGS
WHEELSET WEIGHT
FINISH
TYPE
RIM MATERIAL
RIM DEPTH
INTERNAL RIM WIDTH
EXTERNAL RIM WIDTH
SPOKES
FRONT SPOKE PATTERN
REAR SPOKE PATTERN
BRAKING SURFACE
NIPPLE TYPE
FRONT/REAR HUB
BEARING TYPE
1630g
MATTE CARBON / WATER TRANSFER DECALS
ROAD TUBELESS™ CARBON CLINCHER
EC90 CARBON
55mm
19mm
28mm (AT BRAKE TRACK)
SAPIM CX-RAY / STRAIGHT-PULL
16 / RADIAL
20 / 1x NDS / 2x DS
CARBON
EASTON UST ALLOY
EASTON ECHO
SEALED CARTRIDGE BEARINGS
M1
EC90 SL
EC90 SL DISC
BEST ALL-AROUND
RACE WHEELSET
DISC-EQUIPPED
RACE WHEELS
These are the medium-depth aerodynamic road wheels that your customers have
been waiting for. The EC90 SL takes the proven Fantom rim shape and scales it
down to a shallower 38-millimeter depth. These wheels offer fierce acceleration,
smooth, dependable braking and impressive aerodynamics. From the spring
classics to rough and tumble cyclocross racing, you’ll be hard pressed to find a
condition where the EC90 SL is out of its element.
The EC90 SL is available in tubular or certified Road Tubeless™ carbon clincher.
EC90 SL wheels are entirely built by hand from start to finish and acoustically
tuned. These wheels combine top-end materials, a methodical build and the
award winning Echo hubset.
Disc brakes are the future of road cycling. They’re proven in mountain and
cyclocross, and with the new EC90 SL Disc wheels combined to the latest
brake systems, there are no longer any compromises associated with going
disc. The EC90 SL takes the proven Fantom rim shape and scales it down
to a shallower 38-millimeter depth. These wheels offer fierce acceleration,
smooth, dependable durability and impressive aerodynamics. From the spring
classics to rough and tumble cyclocross racing, you’d be hard pressed to find
a condition where the EC90 SL Disc was out of its element.
38mm TUBULAR
38mm TUBELESS CLINCHER
38mm TUBULAR
WHEELSET WEIGHT
FINISH
1167g
MATTE CARBON / WATER TRANSFER DECALS
TYPE
CARBON TUBULAR
RIM MATERIAL
RIM DEPTH
INTERNAL RIM WIDTH
EXTERNAL RIM WIDTH
SPOKES
FRONT SPOKE PATTERN
REAR SPOKE PATTERN
BRAKING SURFACE
NIPPLE TYPE
FRONT/REAR HUB
BEARING TYPE
EC90 CARBON
38mm
NOT APPLICABLE
28mm (AT BRAKE TRACK)
SAPIM CX RAY / STRAIGHT-PULL
16 / RADIAL
20 / 1x NDS / 2x DS
CARBON
DT INTERNAL ALLOY
EASTON ECHO
SEALED CARTRIDGE BEARING
WHEELSET WEIGHT
FINISH
TYPE
RIM MATERIAL
1473g
MATTE CARBON / WATER TRANSFER DECALS
ROAD TUBELESS™ CARBON CLINCHER
EC90 CARBON
RIM DEPTH
INTERNAL RIM WIDTH
19mm
INTERNAL RIM WIDTH
SPOKES
FRONT SPOKE PATTERN
REAR SPOKE PATTERN
BRAKING SURFACE
NIPPLE TYPE
FRONT/REAR HUB
BEARING TYPE
SAPIM CX RAY / STRAIGHT-PULL
16 / RADIAL
20 / 1x NDS / 2x DS
CARBON
EASTON UST ALLOY
EASTON ECHO
SEALED CARTRIDGE BEARINGS
MATTE CARBON / WATER TRANSFER DECALS
RIM MATERIAL
38mm
28mm (AT BRAKE TRACK)
1335g
TYPE
RIM DEPTH
EXTERNAL RIM WIDTH
38mm TUBELESS CLINCHER
WHEELSET WEIGHT
FINISH
EXTERNAL RIM WIDTH
SPOKES
EC90Road Series
WHITE PAPER
CARBON TUBULAR
EC90 CARBON
38mm
NOT APPLICABLE
28mm
SAPIM STRAIGHT-PULL / DOUBLE-BUTTED
WHEELSET WEIGHT
FINISH
1674g
MATTE CARBON / WATER TRANSFER DECALS
TYPE
ROAD TUBELESS™ CARBON CLINCHER
RIM MATERIAL
EC90 CARBON
RIM DEPTH
38mm
INTERNAL RIM WIDTH
19mm
EXTERNAL RIM WIDTH
28mm
SPOKES
SAPIM STRAIGHT-PULL / DOUBLE-BUTTED
FRONT SPOKE PATTERN
20 / 2x
FRONT SPOKE PATTERN
20 / 2x
REAR SPOKE PATTERN
24 / 2x
REAR SPOKE PATTERN
24 / 2x
BRAKING SURFACE
NIPPLE TYPE
DISC
DT INTERNAL ALLOY
BRAKING SURFACE
NIPPLE TYPE
DISC
EASTON UST ALLOY
FRONT HUB
EASTON M1 / SIX-BOLT DISC / 9X100†
FRONT HUB
EASTON M1 / SIX-BOLT DISC / 9X100†
REAR HUB
EASTON M1 / SIX-BOLT DISC / 10X135‡
REAR HUB
EASTON M1 / SIX-BOLT DISC / 10X135‡
†Convertible to 15x100, parts sold separately.
‡Convertible to 12x135/142, parts sold separately.
18
The EC90 SL is available in tubular or certified Road Tubeless™ carbon clincher.
EC90 SL wheels are entirely built by hand from start to finish and acoustically
tuned. These wheels combine top-end materials, a methodical build and the
proven M1 hubset. Best of all, these wheels are future proof in that they can
convert to 15x100 (front hub) and 12x135 & 12x142 (rear hub); parts sold separately.
†Convertible to 15x100, parts sold separately.
‡Convertible to 12x135 & 12x142, parts sold separately.
EASTONCYCLING.COM