Originally Posted by
sfrider
I have the Ultimate CF SL 8.0 Di2 DB, and it's a perfectly solid bike. The DT P1800 wheelset is the weak end of the build; they're not a hazard in gusty winds, but will drag - a lot - when leaning into side winds, whether steady or gusty. They really don't handle lateral loads well, but when they can be ridden upright or with purely radials loads (like when cornering) they're perfectly fine. The DT370 pawl engagement angle is high enough to occasionally "slam" against it when coming out of a shift or half coast (like when going from 9% to 0% to 9%, such as over a crossroad on a climb), but that's more of an annoyance. I don't know about the Reynolds on the SLX 8.0 SRAMs (this is the rim brake wheelset?), but given the price point I'd expect about the same. Other than that, pretty much everything they put on my SL is perfectly usable. The Fizik saddle is fine up to 2-3 hours, the bars are excellent (for my light pinball grip style riding), the bar tape is excellent, and there was really nothing else other than the wheels I felt an urge to replace. Even the shifters were properly positioned for me out of the box (= level with the tops). The large flat aero bar-tops provide a good solid grip on climbs to holf yourself down over the pedals.
The integrated cockpit is great IMO, but you won't be able to point the bars up if that's how you like to ride, but keep in mind if you drop the bars lower as you lean over them your forearm angle against the bars increases. For computers, Canyon has a plastic Garmin mount; K-Edge sells both a regular mount and a combo mount that can hold a camera or light. The K-Edge can be used with either a Garmin or Wahoo by replacing the insert. (I think it can only be bought stock for Garmin though.)
I have the same bike and I love it. In terms of the computer mount, I've spent tons of time researching it, but there are options out there for Wahoo/Garmin and others and they're all that paddle/spoon shape where it's affixed to the underside of the aero cockpit by two screws. If you want to mount a computer AND a light or a Gopro, it gets annoying but there are solutions out there.
I do wonder though, what wheels and saddle did you swap for (if you did at all)? I never really minded the P1800s but I got a set of ARC1400 Dicut 48s on a sale and I think they feel a bit faster (they also probably are), but I never found the P1800s to handle poorly with lateral loads. I don't find the 48s to be that much worse in crosswinds either but I haven't encountered anything too bad yet I suppose.