background image

2010 LEFTY ULTRA 120

Owner’s Manual Supplement

125227.PDF

EN - 12/09

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/

Replacement Cannondale part numbers are shown 

throughout this supplement in  

BOLD ITALIC

 text.

CONTENTS

SAFETY INFORMATION  ......................................2

Intended Fork Use ................................................... 2
Fork Damage ........................................................... 3

INDENTIFICATION .............................................4

LEFTY WHEEL HUB ............................................5

SPECIFICATIONS

Lefty Ultra 120 Carbon Sl w/PBR ............................. 6
Lefty Ultra 120 w/PBR ............................................. 7
Lefty Ultra 120 w/DLR ............................................. 8

PBR ADJUSTMENT.............................................9

DLR ADJUSTMENT ...........................................11

FRONT WHEEL ................................................12

Removal  .............................................................. 12
Installation ........................................................... 13

XC3 STEM-STEERER .........................................14

1.125” STEERER ..............................................16

MAINTENANCE  ...............................................18

Cleaning  .............................................................. 19
Frame Bumper ...................................................... 19
Boot Inspection ..................................................... 20
Clean/Re-Oil Air Filter ........................................... 21

LEFTY NEEDLE BEARING RESET 

 ............................... 22

PBR  Needle Bearing Reset .................................... 24
DLR Needle Bearing Reset ..................................... 25

Clean/Re-Grease Telescope ................................... 26

REPLACEMENT PARTS .....................................27

WARNING

This supplement may include procedures beyond the scope of general mechanical aptitude.   Special tools, skills, and knowledge may be 
required. 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. 

Summary of Contents for LEFTY ULTRA 120

Page 1: ...NUALSUP UPPLEMENTO WARNING READ THIS SUPPLEMENT AND YOUR CANNONDALE BICYCLE OWNER S MANUAL Both contain important safety information Keep both for future reference 2010 LEFTY ULTRA 120 125227 PDF Revi...

Page 2: ...situation which if not avoided could result in death or serious injury NOTICE Indicates special precautions that must be taken to avoid damage TIP A TIP provides helpful information This manual meets...

Page 3: ...DLR 8 PBR ADJUSTMENT 9 DLR ADJUSTMENT 11 FRONT WHEEL 12 Removal 12 Installation 13 XC3 STEM STEERER 14 1 125 STEERER 16 MAINTENANCE 18 Cleaning 19 Frame Bumper 19 Boot Inspection 20 Clean Re Oil Air...

Page 4: ...idden in more difficult terrain over larger obstacles and moderate jumps 4 intermediate in suspension travel and use components that fit the intermediate intended use 5 cover a fairly wide range of in...

Page 5: ...al of the bolts Horizontal cracks above and below the intersection of the upper and lower clamps with the outer tube portion of the Lefty carbon structure Vertical cracks in the outer tube where the r...

Page 6: ...1 2 43 1 4 1 1 4 1 CARBON SL OPI 400 1 0 43 1 1 63 1 423 32 0 1 9 043 1 2 2 1 4 3 03 0 0 8 1 01 2241 423 3 1 3 1 22 7 0 0 8 ONE PIECE INTEGRATION O P I OUTERTUBE CLAMPS CARBON FIBER OUTERTUBE 0 3 9 0...

Page 7: ...LANGE DIAMETER 44 5MM DISC FLANGETO CENTER 35MM NON DISC FLANGETO CENTER 20MM CAP Park SPA 1 AXLE BOLT SEAL INNER BEARING WHEEL HUB OUTER BEARING WASHER O RING NO RIDE WHEELTRUINGTOOL QCTL108 15 0 Nm...

Page 8: ...ebound Air Pressure Limits MINIMUM 50 psi 3 4 bar MAXIMUM 225 psi 15 5 bar Recommended Sag 25 30 mm SpringType Material Solo Air Negative Spring Air Automatic Damper PBR w PopTop Damper OilVolume Damp...

Page 9: ...Top On Off Rebound Air Pressure Limits MINIMUM 50 psi 3 4 bar MAXIMUM 225 psi 15 5 bar Recommended Sag 25 30 mm SpringType Material Solo Air Negative Spring Air Automatic Damper PBR w PopTop Damper Oi...

Page 10: ...Off Rebound Air Pressure Limits MINIMUM 50 psi 3 4 bar MAXIMUM 225 psi 15 5 bar Recommended Sag 25 30 mm SpringType Material Solo Air Negative Spring Air Automatic Damper DLR Damper OilVolume Damper...

Page 11: ...nter clockwise to increase rebound speed faster Turn in the direction clockwise to decrease rebound speed slower 2 PRESS DOWNTO DISENGAGE POPTOP Rebound can be adjusted in or out of POPTOP PopTop Pres...

Page 12: ...tune the sag Without a rider measure the fork from the bottom edge of the outer collar to the bottom edge of the spindle Next have someone assist you Sit on the bike with your feet on the pedals and h...

Page 13: ...150 68 90 6 2 175 80 105 7 2 200 91 120 8 2 225 102 135 9 3 250 114 149 10 3 275 125 164 11 3 RECOMMENDED SAG 25 30 mm PRESSURE LIMITS Minimum 50 psi 3 4 bar Maximum 225 psi 15 5 bar 2 Now to fine tu...

Page 14: ...ses and the caliper Be sure to reposition correctly 2 Turn the hub extraction bolt counter clockwise ccw to remove the wheel NOTICE Make sure the bolt is completely disengaged before attempting to rem...

Page 15: ...WARNING DO NOT CONTAMINATE BRAKE CALIPER PADS OR ROTORWITH GREASE WARNING DO NOT RIDEWITHOUT A PROPERLY MOUNTED ADJUSTED AND FUNCTIONING FRONT BRAKE SYSTEM The Lefty disc caliper acts as an integral...

Page 16: ...4 Use a rubber mallet to drive the stem steerer into the head tube until it stops 5 Clean and apply grease to the steerer bolt threads and install into the bottom of the stem steerer This is an impor...

Page 17: ...9 0 Nm RING Apply grease to threads before installing 9 0 Nm Keep hole clear for drainage STEERER BOLT HD152 QSISEAL BEARING SEAL CAP STEM STEERER HD169 HEADSHOK HEADSET BEARING HD169 HEADSHOK HEADSET...

Page 18: ...5 3 UIF TUFN UPQ DBQ IBT CFFO JOTUBMMFE BOE QSFMPBE TFU 5JHIUFO UIF FGUZ Clamp bolts to 9 Nm 80 In Lbs CANNONDALE KIT HEADSET STACK HEIGHTS STANDARD Lefty ClampWidth XL Lefty ClampWidth KH058 w Standa...

Page 19: ...125227 PDF 17 20 mm CROWN RACE A headset part UPPER REDUCER Slot Slot LOWER REDUCER 1 125 STEERER SPACERS 10 mm 5 mm CLAMP BOLTS 9 Nm 80 In Lbs CLAMP BOLT 9 Nm 80 In Lbs STANDARD 137 7 mm XL 163 mm...

Page 20: ...nimum 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 suspensi...

Page 21: ...ured with a rubber band or masking tape Spray off heavy dirt before wiping Spray indirectly NOTICE DO NOT USE A PRESSUREWASHER Use a low pressure garden hose Power washing will force contaminants into...

Page 22: ...to check in the folds of the boot Check carefully in the folds Check for any cables or lines rubbing the boot Make sure the brake rotor does not rub or contact the boot 2 Check the attachment of the b...

Page 23: ...filter element Preventing water or soap from entering the holes in the outer tube or into top of the boot This will clean the foam of accumulated dirt or dust 6 Repeat the process with clean warm wate...

Page 24: ...h inner and outer race pair Bearing cage migration happens when a cage or cages shifts out of alignment up or down in relation to the others Very slight migration would not affect travel noticeably ho...

Page 25: ...BE OUTER RACE INNER RACE ALIGNED MIGRATED BOOT DAMPING CARTRIDGE CYCLINGTHETELESCOPE GRADUALLYTO ITS FULL LENGTHWITH DAMPING CARTRIDGE DISENGAGED RE ALIGNSTHE NEEDLE BEARING CAGES TELESCOPE LENGTH mm...

Page 26: ...from a hollow sound to a solid sound this indicates full extension has been achieved Do this several times using only moderate force extend the lower fork leg using a pumping action After you have per...

Page 27: ...rmly extend the telescope until it stops tip listen for the knocking at full extension to change from a hollow sound to a solid sound this indicates full extension has been achieved Do this several ti...

Page 28: ...old grease with a dry shop towel 5 Re apply a fresh heavy coating of grease Any clean high quality bicycle bearing grease selected for riding temperatures and environment can be used Weassembleforksa...

Page 29: ...DR2R 024 8 310 x 024 211mm x 61mm HDR2R 025 8 310 x 025 211mm x 64mm HDR2R 026 8 310 x 026 211mm x 66mm KF209 KF119 HD011 KH063 Carbon KH064 OPI 24 112O RING 112O RING 117O RING 01O RING 014O RING KH0...

Page 30: ...1 HDR2R 020 8 310 x 020 211mm x 51mm HDR2R 021 8 310 x 021 211mm x 53mm HDR2R 022 8 310 x 022 211mm x 56mm HDR2R 023 8 310 x 023 211mm x 58mm HDR2R 024 8 310 x 024 211mm x 61mm HDR2R 025 8 310 x 025 2...

Page 31: ......

Page 32: ...europe cannondale com CANNONDALE AUSTRALIA Cycling Sports Group Australia Pty Limited Unit 6 4 Prosperity Parade Warriewood N S W 2102 Australia Voice 02 9979 5851 Fax 02 9979 5688 Email cannondale cy...

Reviews: