Road routes to Jungfrau trip rail stations

Good evening, i will be arriving at Interlaken in August by motorcycle, can you tell me how far up the Jungfrau train route that we can ride before getting on the train, is it possible to ride to Eigergletscher by bike, park and get on the train there to Jungfrau, if so would you recommend booking in advance or buying the tickets at the
Eigergletscher station :-)

Would you recommend arriving in Interlaken say mid afternoon and then doing the Jungfrau train or would you think it is better to do it the next morning, if so do you know how long the journey from
Eigergletscher to Jungfraujoch is.

Many thanks

Motorized vehicles, and I believe this includes motorcycles, are not allowed above Lauterbrunnen. There is a large covered car park there.

Do not buy advance tickets for the Jungfraujoch excursion as the trip is entirely weather dependent. If it is cloudy you will see nothing but the inside of a cloud.

Morning is always better than afternoon as the chances for clear weather are better.

You can see departure times, journey length, and pricing from Lauterbrunnen here http://www.jungfrau.ch/tourismus/ausflugsziele/jungfraujoch-top-of-europe/tickets-anreise/

Many thanks for the info :-)