Canada's Rocky Mountain Bicycles
has introduced a line of 27.5-inch wheel bikes in the Altitude (trailbike) platform. You can see all the models by clicking here.
The 2013 Altitude 790 MSL
RIDE-9 ADJUSTABLE GEOMETRY
We got a quick look at Rocky Mountain's new adjustable geometry feature, called Ride-9, and honestly, we felt it was too confusing. Our initial impression was the system would be used incorrectly or not used at all by riders. Rocky Mountain must have had similar worries because they have launched a web page that takes the mystery out of Ride-9 and makes it very rider friendly. Click here to try it out.
Ride-9 has 9 possible geometry and suspension rate configurations thanks to two interlocking inserts. By having two nested shock mounts, the Altitudes have a much greater range of adjustability. Rotating these pieces manipulates the position of the rear shock affecting the head angle (66.6°-68.3°), seat angle (73.6°-75.3° ), and bottom bracket drop (-10mm to +10mm) of the bike, as well as the force required to bottom out the suspension.
The dual rotating inserts allow for 9 different positions. By moving the shock forward, the geometry slackens and the suspension rate becomes more progressive, giving greater bottom out resistance for aggressive downhill trail riding. When you move the shock backwards, the geometry becomes quicker and the suspension more supple, for ripping around on technical singletrack and better climbing traction.
When you move the shock upwards, it requires a higher air pressure to support the rider at sag. This is beneficial to lighter riders, allowing them to run “in the sweet spot” of the shock, and not wind up with an under pressurized shock, which feels overly harsh. Conversely, when you move the shock downwards, a heavier rider won’t need as much air pressure, increasing shock and seal durability, and keeps the damping range usable.
Rocky Mountain's Ride-9 is a fine-tune adjustment that allows you to dial in your bike to match your body and the trails you ride. RM makes it easy to find the setting that will work best for you. We have been impressed with every 27.5-inch-wheeled bike we have ridden. The Altitude should take this to a new level.