Frame construction
On first look the Liteville 301 frame does not look very much different from a conventional full-suspension MTB frame with the shock parallel to the top tube. The main difference is that the shock is not mounted, as usual, with the front to the frame but on the back side, to the connection of top tube and seat tube.
The decision to „reverse“ the shock mount has important reasons and is not just a design gag or just to do something different. It was our goal to design a real multi-pivot frame with a „healthy“ construction. That does mean that all forces are supposed to be introduced into the frame as easy as possible on frame and shock
A decisive advantage of the reverse shock linkage is the introduction of forces from the rear triangle and shock into the main frame triangle right to the very sturdy connection between seat tube and top tube. In addition, the introduced force is working against the force being exerted by the rider via seatpost and seat tube and is partially neutralized. In usual full-suspension frames with the shock parallel to the top tube, all forces are working in the same direction and stress the frame much more.
The frame
For maximum stiffness and durability we butted every single tube several times and created an oversize construction. The head tube, for example, is not, as it is customary, made for 1 1/8“ steerer tubes but for the new 1.5“ diameter. Because of the bigger diameter the wall thickness can be much thinner and the tube is actually lighter than most 1 1/8“ head tubes.
And since the head tube is so wide, the bottom tube with its 53mm diameter can be connected to it without ovalizing. In combination with the 44mm upper tube it creates a super stiffness, worthy of a freerider. The seat stays and chain stays are also butted differently to adjust for different loads. A special challenge was the bottom bracket area where bottom bracket, main pivot, front derailleur and rear tire are cramped in a small space. We emphasized efficient use of space to make room for the cranks and have loads of tire clearance at the same time.
The rear triangle
One of our most important goals was to prevent the much-feared suspension bob because at the time of the start of this project, there were no “anti-bob shocks”.
Even today we maintain that it is possible to design suspension systems that are neutral to forces from pedaling and so not need SPV, ProPedal or else and are, at the same have a great small-bump sensitivity.
To design such a suspension we had to understand the reasons for bobbing. For one, the weight of the rider, for example while pedaling standing, causes it. To combat it one needs to have a smooth pedaling stroke – you either have it or need to practice it.
Another weighty factor is the chain torque, brought into the system by the rider.
Through optimum positioning of the 4 pivots of the rear triangle (of major importance is the position of the rocker link) the chain torque introduced into the system by the rider can be completely uncoupled from the function of the rear triangle – even under full load the rear will not bob, regardless of gear ratio.
And it is not necessary to use so-called “anti-bob” shocks. Actually, we noticed that most current shocks are not as well suited (because of too much damping) as “cheap” standard shocks.
It has to be added that the neutral suspension should cover as much of the shock stroke as possible for the rider to be able to pedal even across high obstacles. In our Liteville 301 the relatively long rocker link takes care of this.
Up to 2007 travel has been 115mm, since model year 2007 the travel is 130mm.
pedal jack
Responsible for pedal jack is again the placement of the 4 pivots and the subsequent elongation of the chain when compressing. It is important that there is no pedal jack, regardless of gear. We eliminated pedal jack by precise placement of pivots.
Bearings
For all pivots we use only optimized bearings with special construction. The XC-Racing Kit (accessory) as well as the newest edition of pivot points do only have one bushing. There are 6 ball bearings (stainless, double sealed) in combination with
one hermetically sealed (X-ring) special bushing in the upper tube.
This airtight bushing is being loaded by the patented 130mm Liteville rocker link to achieve much improved suspension. All other pivot points use ball bearings.
Derailleur hanger
For a perfect function we designed the derailleur hanger as part of the frame. This way we achieve a much more precise shifting action compared to the usual, soft derailleur hangers. In all our time testing we never bent a derailleur hanger. In case it ever happens to you, we exchange the seat stays at cost.
The headset
If using 1 1/8" steerer tubes in the Liteville 301, you need to use a 1 1/8“ True Intergration headset. We recommend the use of the Syntace SuperSpin, equipped with double-sealed, stainless bearings. For replacement you can use all standard bearings for integrated headsets. The bearings of the Syntace SuperSpin are press-fitted into the bearing cups.
Cable routing
An important (and difficult) task has been the perfect routing of shift cables and brake hoses. We know from experience how important a dirt-proof routing with few and easy radiuses is. In dirty riding conditions the forces to operate shifters are getting higher fast, so we opted for a closed shifter housing all the way to the rear.