Follow signs in the parking lot to the trailhead. Start a 1000 ft climb on fireroad then descend to the lake. Take a left around the perimeter of the lake until you come to the Flume trail trailhead. The trail is mostly singletrack with sparse technical sections, but overall an easy ride on the mountain ridge overlooking Spooner Lake. The views are spectacular. At the 10 mile mark, you can connect to the Tahoe Rim Trail to head back to the parking lot or follow the signs to the shuttle bus. The shuttle will take you back to the parking lot for $12.50 or you may opt for a gradual climb of 8 miles on the road back to the park for free.
Review: Locals east shore Tahoe ride. A buddy and I left a car at Tunnel Creek (finish) and didn't use shuttle. First 3.6 mile climb gets steep - some may walk the last half mile. Otherwise, expansive views from high above Lake Tahoe and fast down hill (with sandy spots). Super enjoyable and a good ride for beginner to intermediate levels. It's ~ 2 hours from start to finish.
Review: Epic. Absolutely a must ride. Challenging uphill to get to the start. Not long but incredibly scenic and technical enough to challenge anyone/everyone. Yet you can easily walk around and avoid the natural obstacles so kids can actually handle it....as long as they can make the climb to get started.
Review: Did the shuttle from Spooner Lake via Flume Trail Bikes. (8/1/16) Shuttle was great. You jump right in and climb for about 3 miles. Then it gets really steep for about a half mile and the climbing is done while reaching 8200 ft. This would be very tough for low landers or people that are not very fit. Several people hiked a bike through some of the toughest sections. But it is worth it. Nice downhill to Marlette Lake and then the Flume Trail begins. Flume is indescribable. Views are amazing. Trail is generally not as narrow as it appears to be in youtube videos I previewed. I am not great with heights but did okay all but in a very short narrow section. Two way traffic is a little disconcerting but we went on a Sunday and only passed 5 people. The part with the amazing views is probably 4-6 miles. Very flat. You end the ride with a long downhill back to the bike shop/cafe where the food was good.
Review: Good ride, with amazing views of Lake Tahoe. The first 4 miles from Spooner Lake SP climbs up a fireroad, is fairly easy, and not technical. The next section of ~1-2 miles descends a fireroad to a wide path before the Flume Trail begins. The Flume trail is mostly elevation neutral for the next 5 miles of nice singletrack along the cliffs above Lake Tahoe. The biggest objective hazard is keeping your eyes on the trail and not the lake view. The final descent avoids the exposure of the cliffs.
Review: This trail is all about the spectacular views. It is a bucket list ride for sure. Decent climb to get to the Flume trail but not bad and well worth it. Some exposure so be careful but not technical.