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Congratulations and thanks for purchasing the world’s newest, most
innovative, and most adjustable full suspension design, the Cannondale
Jekyll. Please take a moment to read and understand this supplement
and the other literature included with the bike, including the Cannondale
Bicycle Owner’s Manual and the HeadShok specific supplement. These
will provide important safety warnings and performance tips which will
make for many miles of safe, high output riding pleasure. If you have any
questions about your frame or the contents of this manual, don’t hesitate
to contact us. See the back page for phone numbers and E-mail contacts. 

Your Cannondale Jekyll should have also included a standard owner’s
manual and a front suspension specific manual. If you did not receive
both the Cannondale Bicycle Owner’s Manual and the HeadShok owner’s
manual, please download and print one from the Cannondale website
Tech Center or call our customer service line at 1-800-BIKE-USA in 
the U.S. or Canada to have one sent to you.

Please note that this manual is meant to supplement, not to replace, the
Cannondale Bicycle Owner’s Manual. The owner’s manual contains valu-
able information regarding safe operation, adjustment, and maintenance
of your bicycle, as well as more complete warranty information. Please
read the Cannondale Bicycle Owner’s Manual thoroughly before riding
your bicycle, and keep it and this booklet for future reference.

Because the Jekyll bicycles are so unique, there are some important facts
and warnings of which you need to be aware. The warnings are written as
appropriate throughout this manual. Please read and heed all warnings,
the information is here for your benefit.

CANNONDALE

®

JEKYLL

TM

OWNER’S MANUAL

Summary of Contents for Jekyll

Page 1: ...not receive both the Cannondale Bicycle Owner s Manual and the HeadShok owner s manual please download and print one from the Cannondale website Tech Center or call our customer service line at 1 800...

Page 2: ...e the shock is positioned in the collar Some Jekyll models use Fox rear shocks equipped with compression adjusters which can be used to stiffen the rear suspension for a more race oriented ride COMPON...

Page 3: ...hok headset cups only FRONT DERAILLEUR All Jekylls require a standard bottom pull type front derailleur with a 31 8mm clamp diameter Because the front derailleur mounts to the rear swingarm and has a...

Page 4: ...from chain slap ALTERNATIVE BRAKES Hydraulic and disc brakes are a popular upgrade on many suspension bicycles When selecting a hydraulic brake system for your Jekyll choose one that mounts to the fr...

Page 5: ...hex wrench Once the bolt is removed pivot the swingarm down and the rear of the shock up so that the two don t touch 3 Spin the shock body clockwise when viewed from the front of the bike within the p...

Page 6: ...ost aft position adjust the front derailleur so that the derailleur cage is approximately 1mm above the large chainring when there is no weight on the bike see Fig 2 The rear end of the derailleur cag...

Page 7: ...7 1mm Fig 1 Fig 2 Note Threads...

Page 8: ...should never be used These gear combinations called cross chaining place undue stress on the chain chainrings derailleurs and rear cogs Duplicate or similar gear ratios can be achieved in other combin...

Page 9: ...tside of the Lefty leg and behind to the disc brake See Fig 4 Note that the zip tie loops need to be loose enough to allow the hydraulic brake line to slide freely up and down If equipped with a Fatty...

Page 10: ...DERAILLEUR Run cable housing from the front shifter to the housing stop on the right side of the downtube Run exposed cable to the housing stop a the lower end of the downtube Run cable housing appro...

Page 11: ...the outside of the Lefty leg and behind to the disc brake See Fig 4 If equipped with a Fatty Ultra or Super Fatty fork the tubing from the front brake lever should be directed behind the shock boot an...

Page 12: ...towards the front derailleur REAR DERAILLEUR Run cable housing from the rear shifter to the lower slot in the double housing stop on the left side of the downtube Insert the included plastic cable sto...

Page 13: ...a 27 2mm diameter seatpost and be sure that the seatpost is held securely by the seatpost collar The seatpost collar clamp bolt must be torqued to 70 80 In Lbs 8 9 Nm Failure to properly torque the c...

Page 14: ...e seat It may be easiest for the rider to lean against a wall or post It is important that the rider not bounce the bike Then have the rider carefully dismount the bike again being careful not to boun...

Page 15: ...te the different ride characteristics You may want to change your rebound setting for different riding conditions COMPRESSION DAMPING ADJUSTER Fox FLOAT RC rear shocks also have a compression adjuster...

Page 16: ...l for more details All other components including HeadShok forks suspension parts frame fixtures and finishes paint and decals are warrantied against manufacturing defects in materials and or workmans...

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