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Enve composites 2018 lineup

ENVE Composites launched the last M-Series rim back in 2014. While 2014 doesn’t seem that long ago, ENVE has been hard at work optimizing their rims. I was in Wales to attend ENVE’s launch of the revamped M-Series line up. All told ENVE is launching 4 new rim profiles, each available in 27.5” or 29” diameters and a selection of widths. The concept is to give the rider the choice to independently pick their rim strength, rim width, and rim diameter. Nomenclature wise the first number in the naming is the series, and the second two numbers are the internal rim width in mm. M5 is intended for XC ranging through to M9, which is intended for DH racing. Widths range from 25 mm to 40 mm, but all widths aren’t available in all the rim series’. All new wheels are ready to ship globally on October 20, 2017.

Recommended tire sizes for each rim width:

  • 25 mm – 2.1″ to 2.4″ tires – XC racing
  • 30 mm – 2.3″ to 2.5″ tires – the MTB standard for M6, M7 and M9
  • 35 mm – 2.5″ to 2.8″ tires – Wide Trail
  • 40 mm – 2.8″ to 3.2″ tires – Plus Tire size

ENVE M525_HiRes.jpg


The M5 series rims replace existing M50 rims. The M5 is ENVE’s lightest rim and intended for XC use.

  • M525 – 25 mm internal width:
  • Rim weight; 27.5″ = 345 g, 29″ = 365 g
  • Wheelset Weight (w/ DT240 CL Boost); 27″ – 1317 g, 29″ = 1370 g
  • 24 spoke
  • MSRP $2,800 USD


ENVE Hookless Bead Small.JPG

The M6 series rims replace their existing M60 rims. The M6 series is intended as the defacto trail riding wheelset. All are 28 hole count and retail for $2,800 USD per wheelset.

  • M630, 30 mm internal width:
  • Rim weight; 27.5″ = 385 g, 29″ = 405 g
  • Wheelset Weight (w/ DT240 Boost); 27″ – 1467 g, 29″ = 1548 g
  • M635, 35 mm internal width:
  • Rim weight; 27.5″ = 415 g, 29″ = 430 g
  • Wheelset Weight (w/ DT240 Boost); 27″ – 1540 g, 29″ = 1573 g
  • M640, 40 mm internal width:
  • Rim weight; 27.5″ = 455 g, 29″ = 490 g
  • Wheelset Weight (w/ DT240 Boost); 27″ – 1607 g, 29″ = 1693 g

M7 Series rims replace the existing M70 rims. The M7 series is intended for aggressive trail and Enduro racing. All M7 series rims include ENVE’s Protective Rim Strip (more on that in a minute), are 32 hole count, and retail for $2,900 USD per wheelset.

  • M730, 30 mm width
  • Rim weight; 27.5″ = 520 g, 29″ = 560 g
  • Wheelset Weight (w/ DT240 Boost); 27″ – 1778 g, 29″ = 1875 g
  • M735, 35 mm width
  • Rim weight; 27.5″ = 560 g, 29″ = 600 g
  • Wheelset Weight (w/ DT240 Boost); 27″ – 1858 g, 29″ = 1955 g
  • M735e, 35 mm width optimised for eBikes
  • Rim weight; 27.5″ = 560 g, 29″ = 600 g
  • Wheelset Weight (w/ DT240 Boost); 27″ – 1946 g, 29″ = 2051 g

ENVE M930_HiRes.jpg


M9 Series rims replace their existing M90 rims. This rim is intended for heavy duty Enduro and DH racing. ENVE’s strongest rim:

  • M930, 30 mm width
  • Rim weight; 27.5″ = 665 g, 29″ = 705 g
  • Wheelset Weight (w/ DT240); 27″ – 2117 g, 29″ = 2214 g
  • 32 hole count
  • MSRP $2,900 USD
ENVE Protective Rim Strip Small.JPG

Dynamic Impact Design:

ENVE’s M7 and M9 series rims come with a patent pending rim strip called, “Protective Rim Strip”. I prefer the informal name, the Stripper. This rim strip is an in-house developed and manufactured polyurethane strip. The Protective Rim Strip, or Stripper, is an answer to most folk’s issues with carbon rims; pinch flats, and carbon cracks losing tire pressure. The M7 and M9 rims were developed in conjunction with the Stripper, and as such the rims can’t be used without the strip. Similarly the strip won’t work with other rims. The rim strip is intended to widen the bead surface under the tire, reduce the stiffness of bead under the tire, absorb direct impact energy and maintain tire pressure in the event of rim failure. This has the threefold effect of reducing tire pinch flats, reducing rim damage due to acute rim strikes, and allowing you to finish your ride in the event of rim cracks. ENVE’s in-house testing has shown the Stripper to far exceed the pinch flat resistance of the other commercially available rim/tire protector products. The Stripper weights roughly between 120-160 grams (depending on size) and that weight is included in the above rim weight numbers since the Stripper is integral to the rim structure and tolerances. The Stripper has proved so successful at eliminating pinch flats, ENVE was unable to pinch flat a Kenda tire casing until rim damage occurred. ENVE were coy to use the term “game changer”, but if what ENVE say is true, the M7 and M9 rims will offer unrivaled flat tire resistance in a weight no one else can come close to.

ENVE Pinch Flat Data.JPG

ENVE and the M Series Construction:

All ENVE rims and wheels are built in-house at ENVE’s HQ in Ogden, Utah. ENVE also makes all the tools, molds, jigs and other equipment required to build the rims. With their vertical integration ENVE can control every part of the manufacturing process ensuring consistent product quality. One of the ENVE’s enabling patented technologies is their molded spoke holes. This allows ENVE to hold and control the carbon fibers around the spoke hole during the layup and curing processes. Some manufacturers mold a solid rim profile, and then machine the spoke holes after curing (without knowing where the spoke holes might be). This allows ENVE to better utilize the material in the rim by reinforcing the spoke hole, without superfluous material between the spoke holes. For a given strength this allows ENVE to produce a slightly lighter rim. ENVE’s rims come out of the mold, internal bladder removed, mold flash removed, and then wheels are assembled in house. The rims have no sanding, no fillers and no paint. Just raw naked carbon for your riding pleasure.

ENVE Spoke Holes.JPG
ENVE Cross Section.JPG

ENVE chooses to hide the spoke nipple inside the rim. This results in a larger bearing area between the spoke nipple and the carbon rim, allowing a lighter rim, and stiffer interface. While this seems like a pain in the butt to retension spokes, ENVE claims the wheels will barely ever need retensioning. While I can’t comment on the ENVE wheels so far, I can attest that some of the other high end carbon wheels I’ve been riding lately hold their spoke tension surprisingly well