This is the first frame that I have utilized carbon seatstays – adding to the carbon ISP and headtube from the previous Superlight V3, the carbon stays save around 40g over the regular slender steel ones. The carbon tubes are bonded in place, and have an additional mechanical fixing consisting of a small titanium pin through each joint.
As shown with Enve SES 3.4 carbon tubular wheels, the weight is right at 13lbs. The fork is a THM Scapula, painted to match, whilst the stem is a custom English steel (122g) with a mounting boss built in for the Di2 control box. The tubing is mostly True Temper (with one of my few remaining (now discontinued) S3 aero downtubes), with Enve supplying the carbon.
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