Marzocchi QR20 Plus Owner's Manual
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Marzocchi QR20 Plus Owner's Manual

Marzocchi QR20 Plus Owner's Manual

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Summary of Contents for Marzocchi QR20 Plus

  • Page 3 • Check to be sure that all quick release riding equipment is in excellent condition. fasteners, nuts and bolts are properly • The lifespan of Marzocchi products depends adjusted. Bounce the bicycle on the ground on many factors, such as riding style and and listen and look for anything which may be riding conditions.
  • Page 4 PROPERLY forks should be used only with disk brakes, as well as frames, wheels and other components Marzocchi suspension forks are among the specifically designed for this riding style. The most durable and technologically advanced disk brakes must be attached to the designated forks on the market today.
  • Page 5 2. Select the Correct Fork for Your Riding Style from the Table Below. Please see your Marzocchi retailer, or contact Marzocchi directly, if you require assistance in selecting the correct fork. Tab 1: 2004 Fork Riding Categories and Intended USE...
  • Page 6 REMEMBER Even forks made out of solid metal will fail if they are misused, abused, or improperly used! Extreme use can eventually wear out and break even the strongest components. “Ride fast, yet ride Smart”...
  • Page 7 Use and maintenance instruction manual...

  • Page 8: Table Of Contents

    ......... 88 Table 8: IProblems - Diagnosis - Solutions 89 Wheel installing with a Table 9: Periodical maintenance table ..90 QR20 Plus fork ........ 88 Table 10: MY04 adjustments table....93 Maintenance ........89 Table 11: Key ..........93 Problems - Diagnosis - Solutions ..

  • Page 9: Introduction - General Safety Regulations

    The information contained in the “Safety are not actually a part of the fork. regulations for the manual’s user” section will have to be followed for both, the MARZOCCHI MARZOCCHI reserves the right to make PREMIUM SUSPENSION forks’...

  • Page 10: Use Application Of The Premium Suspension Forks

    Do not use forks for an application that is You will find in the following table the use different from the one provided by the applications MY2004 MARZOCCHI manufacturer. PREMIUM SUSPENSION forks. For further information concerning the specific fork’s use, please refer to the “Safety regulations for the user”.

  • Page 11: Technical Information

    MARZOCCHI offers the option of the integrated fender for all 32 mm diameter legs forks. The fender mounted to the underside of the crown helps protecting the rider against debris from the front tire. Marzocchi Premium Suspension securing systems: (A) traditional dropout, (B) QR20 Plus.
  • Page 12 = not available ATTENTION Marzocchi reserves the right to modify data and features quoted in the table here above, if needed for technical and/or commercial requirements. The dimensions indicated in the drawing are only given as indicative. Please check on the internet page www.marzocchi.com...
  • Page 13 =not available ATTENTION Marzocchi reserves the right to modify data and features quoted in the table here above, if needed for technical and/or commercial requirements. The dimensions indicated in the drawing are only given as indicative. Please check on the internet page www.marzocchi.com...
  • Page 14 = not available ATTENTION Marzocchi reserves the right to modify data and features quoted in the table here above, if needed for technical and/or commercial requirements. The dimensions indicated in the drawing are only given as indicative. Please check on the internet page www.marzocchi.com...
  • Page 15 = not available ATTENTION Marzocchi reserves the right to modify data and features quoted in the table here above, if needed for technical and/or commercial requirements. The dimensions indicated in the drawing are only given as indicative. Please check on the internet page www.marzocchi.com...
  • Page 16 = not available ATTENTION Marzocchi reserves the right to modify data and features quoted in the table here above, if needed for technical and/or commercial requirements. The dimensions indicated in the drawing are only given as indicative. Please check on the internet page www.marzocchi.com...

  • Page 17: Fork's Internal Components And Fork's Operation

    On the models using MCU elastomers a correct inside lubrication is made by means of grease. fork’s operation Inside MARZOCCHI forks you will find coil Stanchion tubes are guided in the sliders-arch springs, air or MCU elastomers as a spring monolith by two teflon-coated bushings, free system.

  • Page 18: Installation

    Improper installation jeopardize the safety of the rider. Marzocchi does guarantee installation and refuses all responsibility for damages and/or accidents that may be caused by an incorrect installation. The steer tube must be pressed into the crown;...

  • Page 19: Installing The Brake System

    ATTENTION assembling accessories. Specialized Marzocchi does not guarantee the assembly personnel only can change one brake and refuses all responsibility for damages system type into the other one. On the and/or accidents that may be caused by an bolts thread (A) a special thread-lock incorrect assembly.

  • Page 20: Wheel Installing With A Standard Fork's End

    • Lift the front wheel, turn the wheel a few times to verify the correct alignment with the disk brake or the Cantilever/V-Brake brake pads. 3.5 Wheel installing with a QR20 Plus fork For correct fork function, please follow the...

  • Page 21: Maintenance

    Fork “packs up” or stays down in travel Too much rebound damping Decrease rebound damping during multiple impacts Knocking sound during rebound, but Too much rebound damping Decrease rebound damping no harsh top-out Operations to be carried out at MARZOCCHI authorized centres...
  • Page 22 O-ring damaged Replace O-ring Worn sliding bushings Replace sliding bushings Loss of sensitivity Old oil Change oil Operations to be carried out at MARZOCCHI authorized centres Table 9: Periodical maintenance table General maintenance operation Intense Normal Check screws tightening up...

  • Page 23: General Safety Regulations

    • After a complete breakdown, always use new, overhaul your fork, putting it back into its original Marzocchi seals when reassembling. original working conditions. • To tighten two bolts or nuts that are near each •...

  • Page 24: Cleaning The Fork Legs And The Dust Seals

    Maintenance 4.3 Cleaning the fork legs and the dust seals NOTE The manufacturer lubricates the fork dust seal with some grease, which makes the stanchion tubes slide easier, especially when the fork has not been used for a long time. When using the fork, such grease can melt and stick to the stanchions, looking like an oil leak, although it is not.

  • Page 25: Adjustments

    Adjustments ADJUSTMENTS ATTENTION Please visit our web site www.marzocchi.com for any information concerning the travel increase kit and for different spring rates (K). Table 10: MY04 adjustments table Fork Drop-Off Comp Drop-Off Triple EXR Comp EXR Pro Air EXR Pro Coil...

  • Page 26: Preload

    Adjustments 5.1 Preload To make the most of the fork’s travel, the sag given by the rider’s weight must remain between 10% and 20% of the total travel length for the cross country forks and between 20% and 30% for the free ride forks. To reach these values, you will need to use the preload adjusters of the springs (see paragraph 5.1.1 and paragraph 5.1.2 for forks having...

  • Page 27: Spring Preload With Internal Adjustment

    Adjustments 5.1.2 Spring preload with internal adjustment NOTE The fork is set to the minimum preload by the manufacturer, i.e. the adjuster is completely turned counterclockwise. However, the spring is slightly preloaded to help counteractining static load. To adjust the initial setting according to the rider’s weight and needs, you will have to remove the plastic protection cap (A) and turn the adjuster (B), using a 4 mm Allen key.

  • Page 28: Air Preload

    Adjustments 5.1.3 Air preload ATTENTION To inflate your fork, use only the special MARZOCCHI pump with pressure gauge, which you can buy at the authorized centers. Use of improper tools might lead to improper inflating and cause improper function or damage to the fork itself.

  • Page 29: Rebound Adjustment With External Adjustable Pumping Rod

    Adjustments 5.2 Rebound adjustment with external adjustable pumping rod When turning the adjustment knob (D) located on the bottom of the fork’s leg, you can adjust the damping during the rebound phase. By turning on the adjustment screw you can modify the hydraulic configuration of the inner valves: this means that there will be more or less oil flowing through the valve.

  • Page 30: Ecc

    Adjustments 5.4 ECC The ECC cartridge offers on-the-fly adjustment of the rebound damping. Position: “LOCK” By turning the lever (A) clockwise you will activate the ECC cartridge function. In this position the fork’s legs will stay down after impacts; any other impact will make lower the fork’s geometry further.
  • Page 31 Tables TABLES Table 12:Tightening torques Components to be tightened Tightening Torque (Nm) QR20 Wheel axle bolts 15 ± 1 Fork’s upper caps 20 ± 1 Upper crown fixing bolts 6 ± 1 Lower crown fixing bolts 6 ± 1 Fender fixing bolts 6 ±...
  • Page 32 4. PROCEDURE. In event of a defect covered WARRANTY by this warranty, the purchaser should contact an authorized dealer or a Marzocchi If any component of the Marzocchi Suspension Service Centre. System is found to be defective in materials or workmanship within the term of this Limited Two 5.
  • Page 33 Italy and will be decided by the Courts of Bologna, Italy. NOTE Thank you for the purchase of this Marzocchi Suspension System. If any defect covered under the warranty appears with the agreed terms, send the...
  • Page 34 MARZOCCHI distributors service centers...
  • Page 35 Marzocchi distributors and service centers MARZOCCHI DISTRIBUTORS AND SERVICE CENTERS EUROPE COUNTRY COMPANY TRENDSPORT GmbH Südtirolerstr., 1 - A6911 LOCHAU – Austria AUSTRIA Contact: Mr. Klaus Froeis Tel.: +43 (0)5574 47147 • Fax: +43 (0)5574 52334 Info@trendsport.co.at RAKBIKE S.A. Avenue Jeanne 13 – 1050 IXELLES - Belgium...
  • Page 36 Marzocchi distributors and service centers TAVARES & TIMMERMANS, Lda. Bike Center Condomínio Industrial de Alcolombal – Estrada de Alcolombal, Armazém 1 2705-833 TERRUGEM-SINTRA – Portugal PORTUGAL Contact: Hans Timmermans Tel. +351 (0)21 961 06 21 • Fax +351 (0)21 961 06 38 bikecenter@mail.telepac.pt •...
  • Page 37 Marzocchi distributors and service centers OTHER COUNTRIES COUNTRY COMPANY GROUPE SPORTIF PTY. LTD. 20 Harker Street, BURWOOD, Victoria 3125 – Australia AUSTRALIA Tel.: +61 3 9888 9882 • Fax: +61 3 9888 9902 help@groupesportif.com • www.groupesportif.com FAREN ENTERPRISES #59-E BANSALANGIN ST., PROJECT 7, QUEZON CITY...
  • Page 39 Cod. 900910 MARZOCCHI S.p.A. Via Grazia, 2 40069 Lavino di Zola Predosa - Bologna ITALY Telefono - +39 - (0)51 - 61 68 711 Telefax - +39 - (0)51 - 75 88 57...

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