From the top of the tram (which takes bikes! - or ride up from Lauterbrunnen), walk your bike up the short hill to the start of the trail past a gate. Very soon, the views become just amazing, even by local standards. There are many southeast-facing fields filled with flowers, and it's hard to keep your eyes on the trail!
The little trail that connects to Mürren will rumble by once in a while, and there are some cows and hikers to look out for (in the first half).
The trail is definitely nothing special, but everything else is.