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Monday, November 2, 2009

W-3100 Repair Stand

Heavy-duty steel workstand

W-3100 can lift up the bike for your comfortable and easier maintenance job.
RS-5000 is focusing on easier transportation, but W-3100 is designed for in-house use.

Frame is fully made of steel for offering better stability.
The legs are foldable downward when you bring the frame up. This is good for compact storage when not in use.
The clamp height is fixed at 1,410mm from the ground. It's not adjustable.

Bike is clamped at seat-post or top-tube, and you can set it at your favorite angle.
The clamp jaws can hold the diameter up to 65 mm, and just single lever operation allows you to open/close and micro-adjustment of the jaws.

Optional Tool Tray will be installed on the upper pillar and fully height and angle adjustable.

Body Design

For your serious maintenance job

For example, it is required 500 (50 Nm) or tightening the bottom bracket. The workstand which accepts such heavy job should be made of durable steel. Any alloy workstand cannot accept such jobs.

The main pillar of W-3100 is constructed with two steel tubing. Upper pillar is narrower than lower pillar. The total height of the combined pillars is 1,410 mm.

The legs are positioned widely in order to keep the balance even if you apply big angle to the bike.
When you don't use this stand, just lifting up the frame then the legs will be closed due to their own weight. It's good to store under bed or in the narrow space between cabinets.

Clamp Jaws

Convenient single lever operation
You can open/close and micro-adjust the clamp jaws with just one lever. It is the modified type to prevent from damaging your fragile carbon or super thin alloy frame.
Push down the lever, the jaws will open. Pull up the lever, the jaws will close.
While keeping this closed condition, turn the knob on the lever clockwise to tighten the jaws to clamp the frame.
The jaws can clamp the diameter up to 65 mm and can be rotated 360 degrees in every 15 degrees step. With these functions, you can hold the bike at your favorite height and angle for easier job.
The previous clamp jaws with small and black knob that was used on W-3000 or older models had sometimes lost the connection between the lever and roll-nut if you had loosened the knob too much. It was difficult to re-assemble, but the current clamp jaws on W-3100 has anti-removal mechanism to avoid such problem.

compatibility with carbon frame

Cautions when mounting carbon monocoque frame

Basically, W-3100 has no problem to use on carbon monocoque frame and thin alloy tubing frame bikes. But you should be aware of the following points before use;

1. Keep correct clamping process

The clamp jaws mechanism on W-3100 is different from the one on W-3000 or older models. You need to shut the jaws first, then tighten the knob to finish clamping the bike.

On the old system, your process is;
1) Pre-adjust the clamp jaws opening precisely
2) Pull up the lever to close the jaws
3) Finally, jaws hold the bike firmly after the link plate is set beyond the virtual pivot point.
However, if you had set the jaws opening too tight, it will cause crashing the thin tube by its strong lever power. The new mechanism adopted on W-3100 solves this problem.

The process on the new clamp system is;
1) Pre-adjust the clamp jaws opening wider than necessary
2) Pull up the lever to close the jaws
3) Finally, turn the knob on the lever clockwise to clamp the bike.
This can avoid tube crashing problem due to too strong lever power, and you can manually adjust the clamping power.

2. There are some areas where you should not clamp

Carbon monocoque frame design is different from ordinary steel or alloy frame; the top-tube is not straight and parallel. It's usually that the center part of tubing is smaller than the ends. This is for expecting maximum strength with lightest weight.

We believe it's a quite rare case that the clamping point may be shifted to different point from the original point due to the vibration or shocks during maintenance job. It means the clamping power could become weaker than original.
It could make some troubles like that the bike will suddenly slide off when you lift up the bike, or the bike will suddenly turn and hit your body. It's dangerous.
To avoid this kind of problem, you should clamp the narrowest center part of the top-tube.

In addition, carbon monocoque technique can easily have strange dimension frame like as rectangle or triangle rather than normal round dimension. But every clamp jaws on workstand cannot hold such frame stably.
If your seat-post dimension is round type, clamp it instead of frame for your safety.

Be sure that any aerodynamic shape seat-post cannot be clamped.

3. Do not clamp the cables

Not just the issue on W-3100, if you have clamped the top-tube together with brake or shifting cables, it will cause scratching problem to your bike frame.
It can be one of the solutions to escape from this problem that you put the cables on the jaws, not clamping together, but it will cause another problem that you cannot maintain the cable tension adjustment properly.

The clamp jaws on W-3100 has a 10mm width groove on both top and bottom. You should set the cables in this groove to avoid scratching problem.
Also, the jaws will not touch each other when clamping bike frame, so there is enough space between the jaws. You can align the cable to this area if the cables are located on side.

When you maintain the cable tension adjustment, you should not clamp the frame and just put the frame on the lower jaw. At this moment, be careful about balance.


There is another type of workstand which can solve above problems. RS-1600 holds the bike without clamping the frame, but holds the bike with the front fork end and bottom bracket.
RS-1600 cannot locate the bike at tall point or change the bike angle dramatically like W-3100 does, but it is completely free from frame clamping

optional tool tray

Convenient swivel design

The Tool Tray for W-3100 is its own design. No compatibility with any other models.
Tray is installed to the upper pillar by inserting it to the hole on the tray. Therefore, you need to pull out the upper pillar to installed the tray.

Tray is separated into 4 blocks that is convenient to organize the removed parts or tools.
There are totally 24 slots and holes around the tray to hook the tools.

Tray position is fully adjustable in height and angle.


Important Notices

* Use W-3100 on flat and level floor or ground. Using it on slanted condition may cause falling down problem.
* Fully insert the upper pillar into the lower pillar then fix them with the bolt.
* Close the clamp jaws by pulling up the lever then tighten to knob for clamping. The cam power is much stronger than we imagine. If you clamp the jaws by just pulling up the lever, it may give damage to the bike frame, especially fragile carbon or thin alloy ones.
* Not suitable to keep the bike vertical due to the balance problem. Do not place the bike upper than clamping point.



* SKU 410-3111-00
* Clamp Height 1,410 mm (not adjustable)
* Dimensions W 660 x D 600 mm
* Color Gray
* Material Steel
* Max Load 30 kgs
* Net Weight 7.6 kgs
* MSRP US$129.99


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