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Routine Maintenance & Trouble Shooting

These suggestions apply to all high performance bicycles. A properly maintained bicycle will improve the feel, reliability, safety, and longevity of your investment. When the bike is new and for the first hundred miles, frequently check and tighten the crank bolts. If...

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Eccentric / Timing Chain Adjustment

As the cross over chains stretch, you will need to adjust the eccentrics to tension the chain. We switched from set screw type eccentrics to internal expanding eccentrics in 2004. Specific instructions for the set screw type will be listed below. Using a 4mm hex key...

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Intermediate Shaft

Disassemble the Intermediate Shaft & Remove the Timing Chains Without Loosening the Eccentrics If you do not have da Vinci Tool TL.001, insert two 5mm allen wrenches all the way into any two opposite holes of the DFB (Double Freewheel Block). Use a pry bar or...

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Intermediate Shaft Bearings

Removing the Bearings Pry the bearing spacer off center with a flat punch. Lightly tap the inner race of the bearing from the inside. You want the bearing to come out as straight as possible, so alternate tapping on the top and bottom of the inner race. It is...

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Anti-Chain-Suck (ACS) Bracket Adjustment

If you have experienced chain-suck, (the chain gets stuck in the drive gears by wrapping around the chainring too far), your ACS bracket is adjusted too far from the chainrings, or the ACS bracket is bent, or both. The bracket should be within .030” (.75mm) of the...

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Spindle Adjustment & Eccentric Maintenance

This Information is for the pre 2005 Set Screw Type Eccentrics Removing the Eccentrics When servicing the eccentrics, it is best to remove them from the bike first. To do this all you have to do is loosen the set screws under the bottom bracket shells. If the...

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Torque Specifications

 Part / size wrench   In. Lbs.   Ft. Lbs.   N-M Stem Top Cap / 5mm  10 - 12  .8 - 1.0  1.1 - 1.4 Stem to Bars / 4mm  55 - 60  8.3 - 9.2  6.2 - 6.8 Stem to Fork 55 - 60  8.3 - 9.2  11.3 - 12.4 Seatpost Clamps / 4mm  45 - 55  3.8 - 4.6  5.1 - 6.2 Seatpost Clamps / 5mm...

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Rear Derailleur Adjustment

From the Shimano service manual and tips from da Vinci Top Adjustment Turn the top adjustment screw so that the guide pulley is in line with the outer line of the smallest sprocket when looking from the back. Low Adjustment Turn the low adjustment screw so that the...

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Packing a Global Tandem (S&S Couplers)

Below are instructions for packing an older model with the lateral tube. The size shown is a Medium Road, with the wheels, packed into a 26" X 26" X 12 S&S case. Start by shifting both the front and rear derailleurs into the smallest sprockets. Un-thread the...

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S&S Coupler Maintenance

You must remove both retaining rings and the coupling nut to thoroughly clean and inspect a coupling. ALWAYS TAKE CARE TO PROTECT THE COUPLING TEETH!

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