4 weeks: 1/3 of the planned tour, about 1,600 behind me at an average a bit under 60 kms / day including non-riding days.
My first experience of cycling in Germany was in 2008 along the the Danube - the Donau Radweg. As best I can remember it was a free-flowing experience and navigation and riding speeds were easy. Perhaps memory colours this a bit as the weather was fine and the week before in France was regular rain. Average speeds for the day for me then typically about 23 kph (for most days of the whole trip from Paris to Istanbul).
This tour started a in a similar way on the Main River from Frankfurt for a few days, but since then the days are mostly constant slowing or stopping for navigational checks or changes if the path or road surface is problematic, and slowing for the persistent use of cobblestones. Average speeds perhaps 18, with cruising speeds 25 to 28 after the first hr warm up at say 22 - all terrain and wind modified.
Of particular note is the Elbe Radweg, often described as one of the great cycle rides. Except for part of the day in Saxon-Switzerland when I entered Germany from Czech Republic, I can best describe it as a staccato ride. Turning, bouncing over countless short sections of cobblestones (new and apparent speed bumps), looking for signs, and deciding which side of the river to take as one is better than the other. This does not suit the long distance tourer who likes to set their own rhythm within reason. The Elbe is over 800 kms of cycleway - I only rode a part of it, but dubious about the rest.
From Litomerice to Villa Else before Dresdon and good day some sections of superb scenery in Saxon Switzerland. Frau Else something else.
The next day 92 kms through Dresdon to Strehla on the Elbe - the real staccato day, most frustrating.
From Strehla the priority was to get as close to Berlin as possible, and only linger if something appeared en-route, which nothing did. So made 132 kms at a reasonable pace as I basically chose a direct and nearly straight route on quiet rural roads towards Berlin and only using bike paths if they appeared nearby and were rideable - perhaps 30 kms of the day. A day of few memorable sights, increasing abandoned apartments closer to Berlin, and persistent spiderwebs and small flies throughout the day - there was much corn fields and indoor dairies. The bike was festooned with spiderwebs and me with little flies, and later in the hotel mossies.
When I had had enough Hotel Weisser Schwann (white swan) appeared in the town of Zossen after the worst bit of the day being 6 kms of dirt track along a canal - enticed onto it by the sign and 200 metres of good paving at which time I seemed committed to this route as the road had also just deteriorated. Berlin would be just an easy ride the next day.
On checking in and asking why this place was so highly regarded (their sign said so) I stayed 3 nights. You see, just nearby is a railway station with 50 mins on the regional express train to the centre of Berlin, which I used for the next 2 days.
Berlin: I usually like to walk cities, and particularly after some days in the saddle. After catching the train from Zossen and started walking around it became evident this was no fun. Berlin is the least walkable of all the cities I have visited. Day 1 was orientation and errands day. Day 2 (a Sunday) I took my bike on the train and it was a pleasure. The type of day when the famous old statement about how liberating the bicycle could be really meant something. My bike is allowing me to see Europe in general, and Berlin in particular.
There are other options:
hire a Segway, hire a Trabi (where else?), ride the 10 seater beer bike, go up in the helium balloon, use the good underground or the ubiquitous double decker buses, but none would compare with a bike - on the 2nd day I saw lots of the highlights at a leisurely pace in half a day, then with time for whatever came to mind.
On the following day rode about 1 hr towards Berlin as far as the wall bike path (Mauradweg) which I rode westwards along the southern boundary of the former American zone to Potsdam, visited "sanssouci", an amazing amount of former indulgence of palaces and gardens over a huge site and still undergoing extensive renovations, then joined R1 and continued till late to a hotel in a small village of Borkheide
The next day to Lutherstadt Wittenberg, then to Dessau, and now today in fierce winds a short afternoon ride to Nienburg (Saale), stopping just before a storm front passed through.
The idea for the route from Berlin, or as it transpired from Potsdam, was to ride R1 most of the way across Germany to Munster. R1 begins in France and ends after 3,500 kms in St Petersburg. Another of the great long distance european rides. I am now completely confused by them. They are unrideable. They are part of the Eurovelo network of 12 long distance paths planned for a total of 60,000 kms. I can not imagine any one using them for that purpose. It often has other prior names for other shorter purposes of follies.
I have abandoned using the specific tracks or paths and am now making my own road choices. R1 is circuitous in the extreme, often, very often, on bad surfaces, and if there is a good local road or good cycle path through town, it will direct you to some weird alternative. It appears completely inconsistent with the high standards laid out in the Eurovelo policy guidelines. Note - I am still in the former East Germany for a little while.
My plan is now to find roads to Munster, then south east to Aachen, then Trier, then leave Germany on some trains to Avignon or thereabouts. Perhaps another 10 days in Germany.
The Bike and Gear
Working out pretty well, not sure of weight but perhaps 14 kgs + bike. Two small Ortleib panniers on the front, a light 40 litre backpack on the rear rack so I can easily carry it to hotel rooms with the light panniers in my hand, and a customised bum bag as the handlebar bag with valuables, that easily can be clipped off the bike and used as a bum bag when in cafes or checking in to hotels. A few more tweaks soon.
The GPS now comes into its own now that I have abandoned the idea of looking for R1 (or other) signs. The GPS was useful in any event. Unfortunately not able to interface it with the iPad for route updates.
For future rides might consider fatter tyres. This needs a bit more thought. I have 28 front and 32 rear tyres. 36 back/front might work. Next year I won't have the luggage onboard which also needs to be factored in.