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2010
READ THIS SUPPLEMENT AND YOUR
WARNING
CANNONDALE BICYCLE OWNER'S MANUAL.
Both contain important safety information.
Keep both for future reference.
LEFTY ULTRA 120
125227.PDF
Revision 12/2009

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Summary of Contents for Cannondale LEFTY ULTRA 120

  • Page 1 2010 READ THIS SUPPLEMENT AND YOUR WARNING CANNONDALE BICYCLE OWNER’S MANUAL. Both contain important safety information. Keep both for future reference. TOWNER’SM MANUALSUP UPPLEMENTO LEFTY ULTRA 120 125227.PDF Revision 12/2009...
  • Page 2 In this supplement, particularly important information is presented in the following ways: Indicates a hazardous situation which, if not WARNING avoided, could result in death or serious injury. Indicates special precautions that must be taken to NOTICE avoid damage. A TIP provides helpful information. This manual meets EN standards 14764, 14766, and 14781.
  • Page 3: Table Of Contents

    Improper mechanical work increases the risk of an accident. Any bicycle accident has risk of serious injury, paralysis or death. To minimize risk we strongly recommend that owners always have mechanical work done by an authorized Cannondale retailer. Please note that the specifications and information in this manual are subject to change for product improvement. For the latest product information, go to http://www.cannondale.com/tech_center/...
  • Page 4: Safety Information

    Freeriding, Downhill, North INTENDED FORK USE Shore, Dirt Jumping, Slope-style, Hucking etc. Lefty ULTRA 120 forks are intended for use in Condition 4 (All Mountain) riding. The CONDITION 4 symbol is shown next WARNING figure.
  • Page 5: Fork Damage

    Vertical cracks in the outer tube (where the races and needle bearings run). These may show as long, straight lines perhaps several lines parallel to each other. Also, please read Inspect For Safety in PART II, Section D. of your Cannondale Bicycle Owner’s Manual. HAVE ANY DAMAGED FORK INSPECTED AND DAMAGE REPAIRED BY YOUR CANNONDALE DEALER. YOU CAN BE SEVERELY INJURED, PARALYZED OR KILLED IN AN ACCIDENT IF YOU IGNORE THIS WARNING.
  • Page 6: Indentification

    IDENTIFICATION CARBON SL CARBON FIBER OUTER TUBE ONE-PIECE INTEGRATION (O.P.I.) OUTER TUBE / CLAMPS SERIAL NUMBER 16mm...
  • Page 7: Lefty Wheel Hub

    125227.PDF LEFTY WHEEL HUB LEFTY 24 AND 32 SPOKE HUB DIMENSIONS DISC FLANGE DIAMETER 58MM NON DISC FLANGE DIAMETER 44.5MM DISC FLANGE TO CENTER 35MM NON DISC FLANGE TO CENTER 20MM INNER BEARING WHEEL HUB KB61805/ 6.2 Nm, Loctite 262 QC081/ (24 spk, 6bolt) DISC ROTOR BOLTS SEAL...
  • Page 8: Specifications

    SPECIFICATIONS Lefty Ultra 120 Carbon SL w/PBR Integrated Frame Design RZ One Twenty Intended Use CONDITION 4, Marathon Travel (mm) Pop-Top, On/Off Rebound Adjustments Air Pressure Limits: MINIMUM. 50 psi, 3.4 bar MAXIMUM. 225 psi, 15.5 bar Recommended Sag 25 %...
  • Page 9: Lefty Ultra 120 W/Pbr

    125227.PDF Lefty Ultra 120 w/PBR Integrated Frame Design RZ One Twenty Intended Use CONDITION 4, Marathon Travel (mm) Pop-Top, On/Off Rebound Adjustments Air Pressure Limits: MINIMUM. 50 psi, 3.4 bar MAXIMUM. 225 psi, 15.5 bar Recommended Sag 25 % 30 mm...
  • Page 10: Lefty Ultra 120 W/Dlr

    Lefty Ultra 120 w/DLR Integrated Frame Design RZ One Twenty Intended Use CONDITION 4, Marathon Travel (mm) Lockout, On/Off Rebound Adjustments Air Pressure Limits: MINIMUM. 50 psi, 3.4 bar MAXIMUM. 225 psi, 15.5 bar Recommended Sag 25 % 30 mm...
  • Page 11: Pbr Adjustment

    125227.PDF PBR ADJUSTMENT Rebound POP TOP The red rebound knob has two functions: REBOUND 1. ROTATE TO CONTROL REBOUND. Turn in the -- direction (counter-clockwise) to increase rebound speed (faster). Turn in the + direction (clockwise) to decrease rebound speed (slower). Faster Rebound Slower Rebound 2.
  • Page 12 Recommended Air Pressure To set air pressure 1. Make sure the bottom of the fork is clean. Remove the Schrader valve cap. Attach a bicycle suspension pump to the valve end. Pressurize the fork according to the table. BOTTOM OF FORK RIDER STARTING PRESSURE (Lbs/Kg)
  • Page 13: Dlr Adjustment

    125227.PDF DLR ADJUSTMENT TOP OF FORK REBOUND KNOB Rebound The red rebound dial at the top of the fork controls rebound speed, how fast the fork extends following compression. Turn the dial clockwise (the “+” direction) for slower rebound. Turn the dial counter-clockwise (the “-”...
  • Page 14: Front Wheel

    FRONT WHEEL Removal Loosen the brake caliper mounting bolts. Tilt the lower caliper bolt out of the boss so the caliper is up out of the way of the disc. Snug up on the upper bolt to hold caliper in place. Take note of brake alignment shims between brake bosses and the caliper.
  • Page 15: Installation

    Then place the hub modify the fork in any way. straight down onto the spindle, and tighten the axle bolt. PLEASE ASK YOUR CANNONDALE DEALER FOR HELP 3. When the axle bolt threads engage the spindle, turn the WHEN INSTALLING COMPATIBLE FRONT BRAKE bolt clockwise with finger force slowly to allow the hub SYSTEMS.
  • Page 16: Xc3 Stem-Steerer

    NOTE: Be sure to route the front brake line between Lefty and Headtube when mounting the fork. 3. Insert Cannondale tool KT020/ (a.ka. “Ernie”) through the bottom clamp, into the head tube, and out the upper clamp. The tool aligns and guides the steerer. Its really quite effective! See the graphic? 4.
  • Page 17 125227.PDF STEM SIZE MARKING H-BAR DIA. DATE LENGTH ANGLE STEM STEERER RING QSISEAL/ BEARING SEAL LEFTY HD169/ UPPER CLAMP BOLT HEADSHOK HEADSET BEARING HEADTUBE HD169/ LOWER CLAMP BOLT HEADSHOK HEADSET BEARING STEERER BOLT - HD152/ 9.0 Nm WARNING Keep hole clear for drainage THE STEERER BOLT IS A STRUCTURAL PART AND MUST BE INSTALLED.
  • Page 18: 1.125" Steerer

    The adapter system must be installed by a professional bike mechanic. Clamping on SPACERS will result in insufficient clamping force. the upper reducer. Clamp bolts to 9 Nm, 80 In Lbs. STANDARD CANNONDALE KIT HEADSET STACK HEIGHTS Lefty Clamp Width Lefty Clamp Width Upper cup 13.8 mm KH058/ Lower cup 11.5 mm...
  • Page 19 125227.PDF 1.125 “ STEERER CLAMP BOLT 9 Nm, 80 In Lbs Slot UPPER REDUCER Slot SPACERS 5 mm 10 mm 20 mm CLAMP BOLTS STANDARD = 137.7 mm 9 Nm, 80 In Lbs XL = 163 mm CROWN RACE (A headset part) LOWER REDUCER...
  • Page 20: Maintenance

    SCHEDULE PROFESSIONAL FORK SERVICE * ANNUALLY (Minimum) Annually, or when problems are indicated you must have your Lefty fork serviced through a Cannondale Dealer or an Authorized Headshok Service Center. Your fork should be disassembled by a suspension professional and evaluated for internal and external part wear and damaged parts replaced with new ones.
  • Page 21: Cleaning

    Frame damage can result from using the wrong KIT,FRAME BUMPER, LEFTY STD HD215/ bumper or positioning a bumper incorrectly. Ask your (for standard clamp width Lefty) Cannondale Dealer for help. KIT,FRAME BUMPER, LEFTY XL (for tall KH074/ clamp width Lefty)
  • Page 22: Boot Inspection

    TUBE (lower leg) SHOULD BE EXPOSED. 3. Replace clamps as required. Always tighten securely, but do not over-tighten the clamps . Replacement cable clamps are available through a Cannondale Dealer. IMPORTANT: If you find boot damage, the area under the fork should also be inspected for damage.
  • Page 23: Clean/Re-Oil Air Filter

    125227.PDF Clean/Re-Oil Air Filter The air filter assembly is located over breather air holes in the outer tube. The air filter assembly stops the passage of dirt and water which would damage the internal fork components. The cleaning procedure is the same for carbon or alloy outer tube fork OUTER TUBE To clean and re-oil air filter...
  • Page 24: Lefty Needle Bearing Reset

    The techniques of resetting is the same for all forks, however, dis-engaging the damping cartridge differs. We provide the information in the supplement, however, we recommend that you always have this procedure performed by your Cannondale Dealer. If migration re-occurs frequently (immediately after resetting), the cause could be damage present in the inner or outer races, ,bearings/cages or other fork parts.
  • Page 25 125227.PDF DAMPING CARTRIDGE ALIGNED MIGRATED OUTER TUBE OUTER RACE INNER RACE NEEDLE BEARING CAGES INNER TUBE AIR FILTER TELESCOPE LENGTH (mm) BOOT CYCLING THE TELESCOPE GRADUALLY TO See the SPECIFICATIONS ITS FULL LENGTH WITH table for your fork. DAMPING CARTRIDGE DISENGAGED RE-ALIGNS THE NEEDLE BEARING CAGES...
  • Page 26: Pbr Needle Bearing Reset

    PBR Needle Bearing Reset Shimano TL-FC32 The following procedure should only be completed by a OUTER COLLAR O-RING professional bike mechanic. grease 28 Nm, 248 In Lbs See LEFTY NEEDLE BEARING RESET on page 14. To reset KH027/ PLASTIC SPLIT RINGS WASHER 1.
  • Page 27: Dlr Needle Bearing Reset

    125227.PDF DLR Needle Bearing Reset LOCKOUT LEVER The following procedure should only be completed by a professional bike mechanic. See LEFTY NEEDLE BEARING RESET on page 14. Shimano TL-FC32 OUTER COLLAR To reset 28 Nm, 248 In Lbs 1. Release all air pressure through Schrader valve in bottom of fork.
  • Page 28: Clean/Re-Grease Telescope

    Clean/Re-Grease Telescope Periodically, or whenever the fork is ridden in extreme conditions or is submerged, perform the following procedure. To clean and re-grease 1. Remove the front wheel. 2. Carefully release the upper and lower zip ties securing the fork boot. If the boot is secured with a band clamp, loosen and remove the clamp.
  • Page 29: Replacement Parts

    125227.PDF KF119/ REPLACEMENT PARTS HDR2N/024/ Lefty Ultra 120 w/PBR KH063/ (Carbon) KH064/ (OPI) KH065/ HD161/ HD215/ “STANDARD” KF209/ KF205/ 41 mm (guide) KH074/ HDR2R/020 -- 8.310” x .020” (211mm x .51mm) “ XL ” HDR2R/021 -- 8.310” x .021” (211mm x .53mm) HDR2R/022 -- 8.310”...
  • Page 30 Lefty Ultra 120 w/DLR KF119/ KF211/ KH072/ KT031/ HDR2N/024/ HD215/ KF205/ “STANDARD” HD161/ 41 mm (guide) KH074/ “ XL ” KF209/ KH073/ HD011/ SOLO AIR ASSEMBLY KH071/ #112 O-RING color = GREEN #112 O-RING HDR2R/020 -- 8.310” x .020” (211mm x .51mm) #117 O-RING HDR2R/021 -- 8.310”...
  • Page 32 UPPLEMENT NTOWNER’SM SMANUALSU CANNONDALE EUROPE CANNONDALE UK CANNONDALE USA Cycling Sports Group Europe, B.V. Cycling Sports Group Cycling Sports Group, Inc. mail: Postbus 5100 Vantage Way, The Fulcrum, Poole, Dorset, 172 Friendship Road, Bedford, visits: Hanzepoort 27 BH12 4NU Pennsylvania, 15522-6600, USA...

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