5. Be aware how to behave with police
If the police stop you, do not try to escape. In 90% they will check your documents and let you go. If you exceeded speed limit, you could get a 20-30 EUR penalty that can be paid later in the bank.
Asking for a bribe is not a common thing today; still such situation can happen, especially in a far remote from Moscow area. Be prepared for this and always have small money in cash. 20-30 EUR will be enough in 99% of situations. 100 EUR is maximum banknote you should pay.
Regarding riding rules, it's okay to overcome car or truck using contraflow line or roadside even if there is continuous line there, but do not abuse it. Riding contra lie is prohibited like in most countries in the world.
It's normal to exceed the speed limit (60 km/h in the cities, 90 km/h on secondary roads, 110 km/h on highways) by 20-30 km/h, even up to 40 km/h. 99% of police officers do not know English, so if you did nothing extraordinary, they would let you go.
6. Petrol stations
Petrol stations can be found every 50-100 km in the central part of Russia. Over the Trans-Siberian route, petrol station can be found every 150-200 km. Tough roads segments without petrol stations for 400-500 km can be found only on the Road to Magadan (Road of Bones, BAM, etc.). But these roads are not for usual riders; these are extreme destinations and people going there usually well prepared.
7. Credit cards and Wi-Fi
Visa and MasterCard are widely accepted in supermarkets, restaurants, petrol stations, hotels, metro/underground, souvenir shops, even in the Far East regions. ATM also can be found almost everywhere. Still always have 500-1000 EUR in cash just in case of any emergency situation.
Wi-Fi is also widely available. In Moscow airports, hotels, restaurants and cafes, petrol stations and even underground you can use it for free.