G27 650B

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Starting at:
$
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Please complete configuration to see price.

The G27 is the G23’s little big brother. Smaller in diameter and lighter in weight, the G27 is designed for disc brakes and higher volume tires demanded by many riders on rougher and looser terrain. At 320 grams, our lightest tubeless rim is 27mm wide and designed for tires marked 27.5 or 650B. Armed against pinch flats with the patent pending Wide Hookless Bead, the G27 is at home off-road and capable on tamer stretches of singletrack.  

Enve Demo Program

Welcome to the ENVE Demo Program

The best way to know WHY ENVE, is to ride a pair for yourself.

The ENVE Demo program allows you to ride ENVE on your own bike, on your own terms. Therefore, we invite you to put the ENVE wheelset of your choice through the paces and feel the ENVE difference in the real world.

How it Works:

Steps

  1. Select the ENVE wheelset you wish to demo
  2. ENVE Customer Service will contact you to give a brief wheel specification consultation
  3. ENVE will deliver your demo wheelset within 3 business days
  4. Upon receipt you will have 14 days to demo your wheelset
  5. Upon completion of 14 day demo period, repackage and return wheelset to ENVE using provided return shipping label
  6. *Purchase within 60 days and demo fee will be credited back to you

Cost - $250*

  • Includes shipping to and from ENVE
  • Wheelset delivered complete & ready to ride
    (Includes: Installed Tires, Rotors, Cassette & Emergency Repair Kit

Choose Wheelset

SES (Aero Road Wheelsets) – Present Images of available models w/ review ratings, same as category pages M Series (Mountain Wheelsets) – Present Images of available models w/ review ratings, same as category pages

G27 650B

What It Is
Who It’s For
Why We Made It
Full Details
Tire Compatibility

The G27 is the G23’s little big brother. Smaller in diameter and lighter in weight, the G27 is designed for the higher volume tires demanded by many riders on rougher and looser terrain. At 320 grams, our lightest tubeless rim is 27mm wide and designed for tires marked 27.5 or 650B. Armed against pinch flats with the patent pending Wide Hookless Bead, the G27 is at home off-road and capable on tamer stretches of singletrack.

Those seeking the challenge of drop-bar riding over more technical terrain that is typically frequented by mountain bikes will benefit from the additional air volume, durability, and anti-flat performance benefits provided by the G27.If your path leads you to rough roads, single tracks, and multi-day bike packing adventures – the G27 may be for you.

There is a place between road and mountain open to discovery. Beyond the range of your trail bike or the capabilities of your road bike. Terrain littered with contradicting challenges and demanding requirements are at odds with the bikes and products available today. We built the new G27 to thrive in this new environment because insight gained through building the world’s best road and mountain bike rims told us that the perfect combination did not exist in our stable, or in our opinion, anywhere at all. The higher volume and lower pressures would demand MTB toughness and flat resistance, while big days and long miles would require the lightweight and efficiency of a road machine. Above all, the combination of rough and rigid would require a wheel with the ride quality to make those long miles enjoyable and multi-day trek possible.

We want people to have as much fun riding gravel as we do and for that reason we’ve targeted rim geometries that favor the tire treads and volumes that have proven to be the most fun. With an inner rim width of 27mm the G27, is designed to be paired with 650B gravel and road plus treads from 42mm-60mm and 27.5 XC mountain treads from 1.9”-2.25”. These light casing, supple tires provide ample control and traction, for most gravel riding endeavors, but they do not offer much by way of pinch-flat protection. Despite ‘min PSI’ markings to the contrary, many riders are experimenting with pressure setting in the 20s. The forward-looking G27 is ahead of the trend using our Wide Hookless Bead anti-flat technology, which provides a larger, more forgiving surface during bottom outs, protecting the tire from the dreaded pinch-flat. This technology means you can ride the tire pressures you want, confidently, without limitations. The G Series are intended for tubeless applications and features a molded bead-lock to ensure that your tires will remain secure and sealed to the rim over even the roughest terrain.

SES G Series wheelsets feature a straight sidewall/hookless bead design to ensure best in class tubeless tire performance and are qualified for use with “Tubeless, Tubeless Ready (TLR)” tires, with a labeled width of 28c or greater ONLY. One may safely run inner-tubes as long as the tire itself is of a tubeless or tubeless ready construction.

Please note that the internal rim width of the G23 is 23mm and intended for use with tubeless ready tires between 32-45mm with 40mm tires being the primary focus of the design. The G27 features a 27mm internal width that is intended for pairing with tires between 42-60mm with 55mm/2.0” tires being the target tire width for this rim.

Due to the straight sidewall/hookless design of this rim and inherent high volume design, it is important to understand that not all tires are created equal and for that reason one should pay special attention to the pressure ratings of both the tire and the rim.

G23 – MAX PRESSURE FOR A 32MM TIRE = 60psi/4.1bar

G27 – MAX PRESSURE FOR A 42MM TIRE = 40psi/2.75bar

IN THE CASE THAT TIRE AND RIM MAX PRESSURES ARE DIFFERENT. THE LOWER OF THE TWO PRESSURES BECOMES THE DEFAULT MAX PRESSURE FOR THE SYSTEM.

THE MAX PRESSURE RATING FOR EACH RIM WILL DECREASE AS YOUR TIRE VOLUME/SIZE INCREASES. REFER TO RECOMMENDED TIRE PRESSURE CHART.

ENVE Tip: Trust our tire pressure recommendation chart. The maximum tire pressure ratings on tires are not recommended operating pressures. Running the max pressure will not make you faster, rather, it will actually increase rolling resistance (making you slower) and discomfort (making you slower), jeopardizing the ride experience.

Product Specs

Rim Specs Front Rear
Rim Depth 25mm 25mm
External Width 35.5mm 35.5mm
Internal Width 27mm 27mm
Hole Count 24 24
Effective Rim Diameter 571mm 571mm
Accepted Tire Sizes 42c - 2.25" 42c - 2.25"
Wheelset Specs Front Rear Wheelset
Rim Weight 320g 320g 640g
ENVE Alloy 575g 699g 1275g
i9 Torch Road CL 558g 698g 1257g
Chris King R45 CL 587g 703g 1289g
Spoke Information* Front Length (NDS/DS) Rear Length (NDS/DS) Spoke Cross
ENVE Alloy 276mm / 278mm 278mm / 276mm 2X
DT 240 CL 274mm / 276mm 276mm / 274 mm 2X
Chris King R45 CL 272mm / 272mm 274mm / 272mm 2X
I-9 Torch CL 276mm / 278mm 278mm / 272mm 2X
*This wheelset is built with Sapim CX Ray spokes. Those built before May 2018 may use a DT Swiss spoke equivalent. DT Swiss spoke heads are stamped "DT".

Pressure Recommendations

Rider Weight Rim Model M50 G23 SES 4.5 AR. M525 G27
Inner Rim Width 21mm 23mm 25mm 27mm
Tire Size 28mm 32-35mm 42-45mm 32-35mm 35-38mm 38-42mm 42-45mm 28mm 32-35mm 38-42mm 42-45mm 47-55mm
1.95-2.1"		 38-42mm 42-45mm 47-55mm
1.95-2.1"
90 lbs. 26 23 18 23 21 20 18 24 22 19 17 13 19 17 13
100 lbs. 28 26 20 25 24 22 20 27 25 21 19 15 21 19 14
110 lbs. 31 28 22 28 26 24 21 29 27 23 21 16 23 20 16
120 lbs. 34 31 24 30 28 26 23 32 29 25 23 17 24 22 17
130 lbs. 36 33 25 32 30 27 25 34 31 27 24 19 26 24 18
140 lbs. 38 35 27 34 32 29 26 36 33 28 26 20 28 25 19
150 lbs. 40 37 28 36 34 31 28 38 35 30 27 21 29 26 20
160 lbs. 42 38 30 38 35 32 29 40 37 31 28 22 31 28 21
170 lbs. 44 40 31 39 37 34 30 42 38 33 30 23 32 29 22
180 lbs. 46 42 32 41 38 35 31 43 40 34 31 24 33 30 23
190 lbs. 47 43 33 42 39 36 33 45 41 35 32 24 34 31 24
200 lbs. 48 44 34 43 41 37 33 46 42 36 33 25 35 32 24
210 lbs. 50 45 35 44 42 38 34 47 43 37 33 26 36 33 25
220 lbs. 51 46 36 45 43 39 35 48 44 38 34 26 37 33 26
230 lbs. 52 47 37 46 43 39 36 49 45 38 35 27 37 34 26
240 lbs. 52 48 37 47 44 40 36 50 46 39 35 27 38 34 27
250 lbs. 53 49 38 47 45 41 37 50 46 40 36 28 39 35 27

Recommended Max Tire Pressure for Given Rim & Tire Volume Combo on Gravel Road Surfaces

Note: Tire pressures are intended as a starting recommendation based on the listed wheel being set up with tubeless tire.

The pressure value is calculated considering a tubeless set up, intended road surface, rider's weight, average bike weight, inner rim width, and tire volume.

Rider Weight Rim Model M50 G23 SES 4.5 AR. M525 G27
Inner Rim Width 21mm 23mm 25mm 27mm
Tire Size 28mm 32-35mm 42-45mm 32-35mm 35-38mm 38-42mm 42-45mm 28mm 32-35mm 38-42mm 42-45mm 47-55mm
1.95-2.1"		 38-42mm 42-45mm 47-55mm
1.95-2.1"
41 Kg 1.77 1.62 1.25 1.57 1.48 1.35 1.22 1.68 1.53 1.32 1.19 0.92 1.28 1.16 0.89
45 Kg 1.96 1.79 1.39 1.75 1.64 1.50 1.35 1.86 1.70 1.46 1.32 1.02 1.42 1.28 0.99
50 Kg 2.14 1.96 1.52 1.91 1.79 1.64 1.48 2.03 1.86 1.59 1.44 1.11 1.55 1.40 1.08
55 Kg 2.31 2.11 1.64 2.06 1.94 1.77 1.60 2.20 2.01 1.72 1.56 1.20 1.68 1.52 1.17
59 Kg 2.47 2.26 1.75 2.20 2.07 1.89 1.71 2.35 2.15 1.84 1.67 1.29 1.80 1.62 1.25
64 Kg 2.63 2.40 1.86 2.34 2.20 2.01 1.82 2.50 2.28 1.96 1.77 1.36 1.91 1.72 1.33
68 Kg 2.77 2.53 1.96 2.47 2.32 2.12 1.91 2.63 2.40 2.06 1.86 1.44 2.01 1.82 1.40
73 Kg 2.90 2.65 2.06 2.59 2.43 2.22 2.01 2.76 2.52 2.16 1.95 1.51 2.11 1.90 1.47
77 Kg 3.03 2.76 2.14 2.70 2.54 2.31 2.09 2.87 2.63 2.25 2.04 1.57 2.20 1.98 1.53
82 Kg 3.14 2.87 2.22 2.80 2.63 2.40 2.17 2.98 2.73 2.34 2.11 1.63 2.28 2.06 1.59
86 Kg 3.24 2.96 2.30 2.89 2.72 2.48 2.24 3.08 2.82 2.42 2.18 1.68 2.35 2.13 1.64
91 Kg 3.34 3.05 2.37 2.97 2.80 2.55 2.31 3.17 2.90 2.49 2.25 1.73 2.42 2.19 1.69
95 Kg 3.42 3.13 2.42 3.05 2.87 2.62 2.36 3.25 2.97 2.55 2.30 1.78 2.48 2.24 1.73
100 Kg 3.50 3.19 2.48 3.11 2.93 2.67 2.42 3.32 3.03 2.60 2.35 1.82 2.54 2.29 1.77
105 Kg 3.56 3.25 2.52 3.17 2.99 2.72 2.46 3.38 3.09 2.65 2.40 1.85 2.58 2.33 1.80
109 Kg 3.62 3.30 2.56 3.22 3.03 2.76 2.50 3.44 3.14 2.69 2.43 1.88 2.62 2.37 1.83
114 Kg 3.66 3.35 2.59 3.26 3.07 2.80 2.53 3.48 3.18 2.73 2.47 1.90 2.66 2.40 1.85

Recommended Max Tire Pressure for Given Rim & Tire Volume Combo on Gravel Road Surfaces

Note: Tire pressures are intended as a starting recommendation based on the listed wheel being set up with tubeless tire.

The pressure value is calculated considering a tubeless set up, intended road surface, rider's weight, average bike weight, inner rim width, and tire volume.

Rider Weight Rim Model M50 G23 SES 4.5 AR. M525 G27
Inner Rim Width 21mm 23mm 25mm 27mm
Tire Size 28mm 32-35mm 42-45mm 32-35mm 35-38mm 38-42mm 42-45mm 28mm 32-35mm 38-42mm 42-45mm 47-55mm
1.95-2.1"		 38-42mm 42-45mm 47-55mm
1.95-2.1"
90 lbs. 34 31 24 30 28 26 23 32 29 25 23 18 25 22 17
100 lbs. 38 34 27 33 31 29 26 36 33 28 25 19 27 25 19
110 lbs. 41 37 29 37 34 31 28 39 36 31 28 21 30 27 21
120 lbs. 44 40 31 39 37 34 31 42 38 33 30 23 32 29 22
130 lbs. 47 43 34 42 40 36 33 45 41 35 32 25 34 31 24
140 lbs. 50 46 36 45 42 38 35 48 44 37 34 26 36 33 25
150 lbs. 53 48 38 47 44 41 37 50 46 40 36 28 38 35 27
160 lbs. 56 51 39 50 47 42 38 53 48 41 37 29 40 36 28
170 lbs. 58 53 41 52 49 44 40 55 50 43 39 30 42 38 29
180 lbs. 60 55 43 54 50 46 42 57 52 45 40 31 44 39 30
190 lbs. 62 57 44 55 52 47 43 59 54 46 42 32 45 41 31
200 lbs. 64 58 45 57 54 49 44 61 55 48 43 33 46 42 32
210 lbs. 66 60 46 58 55 50 45 62 57 49 44 34 48 43 33
220 lbs. 67 61 47 60 56 51 46 64 58 50 45 35 49 44 34
230 lbs. 68 62 48 61 57 52 47 65 59 51 46 35 49 45 34
240 lbs. 69 63 49 62 58 53 48 66 60 52 47 36 50 45 35
250 lbs. 70 64 50 62 59 54 48 67 61 52 47 36 51 46 35

Recommended Max Tire Pressure for Given Rim & Tire Volume Combo on Paved Road Surfaces

Note: Tire pressures are intended as a starting recommendation based on the listed wheel being set up with tubeless tire.

The pressure value is calculated considering a tubeless set up, intended road surface, rider's weight, average bike weight, inner rim width, and tire volume.

Rider Weight Rim Model M50 G23 SES 4.5 AR. M525 G27
Inner Rim Width 21mm 23mm 25mm 27mm
Tire Size 28mm 32-35mm 42-45mm 32-35mm 35-38mm 38-42mm 42-45mm 28mm 32-35mm 38-42mm 42-45mm 47-55mm
1.95-2.1"		 38-42mm 42-45mm 47-55mm
1.95-2.1"
41 kgs 2.33 2.13 1.65 2.08 1.96 1.78 1.61 2.22 2.03 1.74 1.57 1.21 1.69 1.53 1.18
45 kgs 2.59 2.36 1.83 2.30 2.17 1.98 1.79 2.46 2.24 1.93 1.74 1.34 1.88 1.70 1.31
50 kgs 2.83 2.58 2.00 2.52 2.37 2.16 1.95 2.68 2.45 2.11 1.90 1.47 2.05 1.85 1.43
55 kgs 3.05 2.79 2.16 2.72 2.56 2.33 2.11 2.90 2.65 2.27 2.05 1.59 2.21 2.00 1.54
59 kgs 3.27 2.98 2.31 2.91 2.74 2.50 2.26 3.10 2.84 2.43 2.20 1.70 2.37 2.14 1.65
64 kgs 3.47 3.17 2.46 3.09 2.91 2.65 2.40 3.29 3.01 2.58 2.33 1.80 2.52 2.27 1.75
68 kgs 3.66 3.34 2.59 3.26 3.06 2.80 2.53 3.47 3.17 2.72 2.46 1.90 2.65 2.40 1.85
73 kgs 3.83 3.50 2.72 3.41 3.21 2.93 2.65 3.64 3.33 2.85 2.58 1.99 2.78 2.51 1.94
77 kgs 3.99 3.65 2.83 3.56 3.35 3.05 2.76 3.79 3.47 2.98 2.69 2.07 2.90 2.62 2.02
82 kgs 4.14 3.79 2.94 3.69 3.47 3.17 2.86 3.94 3.60 3.09 2.79 2.15 3.01 2.72 2.10
86 kgs 4.28 3.91 3.03 3.81 3.59 3.27 2.96 4.07 3.72 3.19 2.88 2.22 3.11 2.81 2.17
91 kgs 4.41 4.03 3.12 3.92 3.69 3.37 3.04 4.19 3.82 3.28 2.97 2.29 3.20 2.89 2.23
95 kgs 4.52 4.13 3.20 4.02 3.79 3.45 3.12 4.29 3.92 3.36 3.04 2.35 3.28 2.96 2.28
100 kgs 4.62 4.22 3.27 4.11 3.87 3.53 3.19 4.38 4.01 3.44 3.11 2.40 3.35 3.03 2.33
105 kgs 4.70 4.29 3.33 4.19 3.94 3.59 3.25 4.47 4.08 3.50 3.16 2.44 3.41 3.08 2.38
109 kgs 4.77 4.36 3.38 4.25 4.00 3.65 3.30 4.53 4.14 3.56 3.21 2.48 3.46 3.13 2.41
114 kgs 4.83 4.42 3.43 4.31 4.05 3.70 3.34 4.59 4.20 3.60 3.25 2.51 3.51 3.17 2.44

Recommended Max Tire Pressure for Given Rim & Tire Volume Combo on Paved Road Surfaces

Note: Tire pressures are intended as a starting recommendation based on the listed wheel being set up with tubeless tire.

The pressure value is calculated considering a tubeless set up, intended road surface, rider's weight, average bike weight, inner rim width, and tire volume.

Technology

High Volume

Explore

Mountain Strong Road Fast

Explore

Application Specific Design & Shape

Explore

Wide Hookless Bead

Explore
High Volume
G23 = 700c x 23mm Internal Rim Width x 35 – 45mm tires
Rider’s looking for maximum versatility, speed and efficiency will gravitate towards the G23 paired with a 40mm tire. There’s a reason this is the most popular tire size in gravel right now.

G27 = 650b x 27mm Internal Rim Width x 42c – 2.25” tires
Riders on rough and loose terrain, who primarily ride dirt, often find more confidence and control from a larger volume tire. Those who prioritize traction and stable control over flat out speed will appreciate the G27.

Mountain Strong Road Fast
At ENVE, product strength and durability are always top design priorities. Here’s a glimpse into the G Series toughness and the standard by which all other gravel wheels will be judged.

G SERIES IMPACT STRENGTH COMPARISON

  • Tested to ENVE mountain impact standard
  • Rated for unsuspended to lightly suspended bikes under the assumptions that technical terrain and obstacles are negotiated at lower speeds than mountain bike
  • Mountain strong, but not ENVE mountain strong.
  • While these wheels are stronger than many mountain bike wheels in the market, they rate just below the elevated impact strength of our new M Series

Application Specific Design & Shape
We demand lightweight for big elevation and long days in the saddle. We dream of floating up climbs, over obstacles and away from the pack. The G Series are the lightest tubeless rims we have ever produced.

The “bell” like shape of the G23 and G27 rim models is a lighter weight execution of our wide hookless bead and creates a rim section extremely capable of energy absorption and damping.

Wide Hookless Bead
As carbon rims have become hookless and increasingly more durable, we have transitioned from rim failures to tire failures. Wearing a tire tread down to the casing is a thing of the past as most tires are lucky if they survive 50 miles of aggressive riding over obstacle laden terrain. While destroying an expensive tire on a weekly basis isn’t affordable, it’s a complete interruption of flow, and an utter buzzkill with a flat tire, regulated to the side of the trail. 

ENVE’s wide hookless bead is the result of 2 years of carbon mountain bike rim development to address this scenario. We have since adapted it into our gravel wheelsets. The result is a rim shape that features a wider leading edge of the hookless bead. This broad surface creates a more forgiving platform on which the tire can bottom out, and proves extremely effective in reducing the likelihood of “pinch” or “snake-bite” style flat.

In addition to greatly improving tire performance and reliability, the wide hookless bead design beefs up the leading edge of the rim and allows for greater impact resistance.

ENVE Wide Hookless Bead (Patent Pending) delivers:
• 60% improvement in pinch flat resistance over other hookless rims
• Ability to run lower tire pressure and improve traction and rolling resistance
• The option to run lighter weight tires if desired
• A more forgiving buffer between rim and trail
• Greater impact resistance

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©2019 ENVE

G27 650B

Starting at:
$
g
Please complete configuration to see price.
Add to Cart

Rim Size

29 Inch Wheels

  • Best speed holding
  • Best traction
  • Smoothest rolling over rough terrain and obstacles
  • Good lateral stiffness
  • Slowest accelerating
  • Best for hard tails and short travel suspension bikes

27.5 Inch Wheels

  • Best features of 29 inch and 26 inch wheels
  • Smoother than 26 inch over rough terrain and obstacles
  • Quicker acceleration than 29 inch wheels
  • Better traction than 26 inch wheels
  • Agility and handling on par with that of a 26 inch wheel
  • Best for medium to long travel suspension bikes

Rim Volume - Each M Series rim is optimized for specific tire volumes. Your preferred tire size should guide your decision between standard and high volume M Series wheels

  • M525 – 2.1-2.4" Tire Width
  • M630 – 2.3-2.5" Tire Width
  • M635 – 2.5-2.8" Tire Width
  • M640 – 2.8-3.2" Tire Width
  • M730 – 2.3-2.5" Tire Width
  • M735 – 2.5-2.8" Tire Width
  • M930 – 2.35-2.6" Tire Width

Spoke Count

24 Hole

  • M525 Specific
  • Striking the right balance between a lightweight and durable build.

28 Hole

  • M6 Series Specific
  • Slightly lighter wheel build
  • Best for lighter riders
  • No difference in durability

32 Hole

  • M7 and M9 Series Specific
  • Slightly heavier wheel build
  • Increased stiffness
  • Best for heavier or more aggressive riders

Front Axle

ENVE supports standard 100mm and boost 110mm front wheel 15mm thru-axle systems on all wheels except the M90 which uses a 20mm front axle. We can convert thru-axles to accommodate quick releases if your fork requires the use of a quick release. Front axle specifications are provided by your fork manufacturer.

Standard = 15mm x 100mm Thru-axle
Boost = 15mm x 110mm Thru-Axle

Rear Axle

Rear axle configuration is determined by your frame. You can find most in the specs section of the manufacturer website.

12x142
The most common current rear axle configuration for all-mountain bikes.
12x148
This is boost. Frames 2015 model year and newer will most likely have a "boost" rear axle configuration.
12x150
Common rear axle on DH bikes model year 2013 and older.
12x157
Most common rear axle configuration on model year 2014 and newer DH bikes.

Freehub

Shimano/SRAM 10
All Shimano 10/11 speed and SRAM 10 speed component groups
XD
All SRAM 1x11

Hub Model

DT 240 6B

  • DT Swiss' most popular hub with 6 bolt brake rotor style

DT 240 CL

  • DT Swiss' most popular hub with center-lock brake rotor style

Chris King 6B

  • Chris King hub with 6 bolt brake rotor style

Decal Colors

G27 650B

$250.00
Demo this Wheelset

Demo this Wheelset

Ride them and you'll know
Step 1
ENVE Customer Service will contact you to give a brief wheel specification consultation.
Step 2
ENVE will deliver your demo wheelset within 3 business days.
Step 3
Upon receipt you will have 14 days to demo your wheelset.
Step 4
Upon completion of 14 day demo period, repackage and return wheelset to ENVE using provided return shipping label.
Step 5
Purchase within 60 days and demo fee will be credited back to you.

Demo Start Date

Rotor Size

Demo Cost
$250.00
  • Includes shipping to and from ENVE
  • Wheelset delivered complete & ready to ride
    (Includes: Installed Tires, Rotors, Cassete & Emergency Repair Kit)

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