Ribble Endurance SL Disc vs Canyon Ultimate CF SL 7 Disc

Hard call, they are both great bikes!

It's really down to personal preference and cost.

For an all-round/winter bike, I would go for the Ribble as it has mudguard mounts. If you aren't intending to do too much riding in the wet (or you're happy with clip-on guards) the Canyon is the lighter bike.

I'd chose the integrated cockpit and switch the wheels to a lighter/more aero set regardless of which bike it was - but that's mainly because I fancy myself as some sort of pro racer (which I most certainly am not!).

I have a Canyon Ultimate and my girlfriend has a Canyon Endurace, they are both superb bikes the Endurace really is just a slightly more comfy/relaxed/stable Ultimate. That said, the bike I ride for the 8 months of the year when it's not sunny and dry is a Whyte Wessex - a bit heavier, but with mudguard mounts.

If you mainly want lightweight and a bit extra speed, go for the Canyon. If you aren't so worried about speed and want the added mudguard mounts, go for the Ribble.

For me - and without looking at what other bikes are available at the same range - I'd drop the integrated handlebar and spend the money on a custom colourscheme.  The handlebars won't make you faster, but the paintjob means you'll love it more, ride it more, and that actually might make you faster.

I'd go with the Canyon, mainly due to that 700grams weight saving, because every time I went up a hill on the ribble I'd be thinking about the Canyon. (Which is exactly what I do every time I go up a hill on my endurance bike). Also I personally don't value the integrated cockpit hugely.

The ultimate comes with integrated cockpit as standard, so it's a straight choice of £200 extra for saving 0.7kg

The endurace 7.0 is closer in price and weight to the ribble, but can't be ordered at this time anyway

I don't think the wheelset is a major issue though, as the DT swiss 1850 are not top end wheels anyway. And you might end up replacing either set with something lighter and/or more aero.

Overall, if you want to go the online route and have checked the geometry for both and happy that it is right for you, then it might come down to which you prefer the look of, as the spec is essentially the same. I would not choose a bike I liked less for a saving of less than 10%, because i would always be thinking about the one I prefered.

So if it were me I'd be going for the Canyon, but others have stated they like the look of the ribble, which is not to my tastes.

Did you make a decision on this... I'm in a similar boat, have been riding for a couple of years now, currently on a very upright second hand Merida.

Looking at the rim brake version of both mentioned, Ultegra Endurance SL from Ribble, vs Ultegra Ultimate CF SL 8.0. Keen to hear if you made a final decision.

Weight swinging me in favour of the Canyon currently but the Ribble with the dropped seat stays is stunning. 

Check delivery times with Ribble and Canyon before committing. I'd be amazed if you can get either of these bikes within 6 months. Might have to temper expectations in current covid/Brexit scenario. Do you really want one of these for delivery in autumn plus?

I'm currently finding myself very tempted by the Ti version of the Ribble.

The ribble looks good but I have a 2 year old cf sl 8.0 disc (Ultegra basically) and it's been a fantastic bike. Really fun to ride, both stiff for the sprints and accelerations but also comfortable with it. 
 

You probably  can't go wrong with either tbh. The main advantage of the ribble I can see is the hidden mudguard mounts if you are planning to use it all year round (if you're not selling your allez I'd keep that for your winter bike)

They'll both be good bikes, you won't go wrong with either. One good thing about the Ribble is that it does have mudguard mounts which will be useful if you're planning to use this bike all year. 

I'd also add that the Canyon comes with better tyres than the Ribble. I'd certainly prioritise getting better tyres on the Ribble over having a fancy integrated handlebar/stem that'll be a ballache to maintain.