K2 Bike manual Changing Coil Springs, Rear Shock Removal Shock Spring Removal

Rear Shock Removal

Shock Spring Removal

K2 Bike	5500C, 4500C,	3000, 2000	Animal, Beast
Rear	5000, 4000	1000	Animal DH 4
up to 140	400	200	550
130-170	500	250	600
160-200	550	300	650
190-230	600	350	700
over230	650	400	750
SpringType	NB175 -x-x	NB2-x-x	NB175-x-x or NB2-x-x

Springratehasaneffectondamping. Thehigherthespringrate,themoredampingwillberequiredtocontrolthemotionoftheshock. Thisis whylighterridersfeeltheirshocksmaybeoverdampedwhileheavierridersmaynotperceiveenoughdamping. Seethenoteson Rebound Damping and Compression Dampingbelow for a further explanation.

Changing Coil Springs

CAUTION: Girvin strongly recommends that your K2 Bike be disassembled and adjusted by your authorized

!K2 Bike dealer. Your authorized K2 Bike dealer possesses the proper training and tools to service your bi- cycle. Improperly assembled or adjusted bicycles can be extremely dangerous, and can result in failure during use and severe injuries. These instructions are provided for owners having sufficient knowledge and the proper tools to do the job.

YoumayneedtochangethecoilspringsonyourK2Bikeinordertotuneyoursuspensionproperly.Wesuggestthis bedonebyyourlocalK2Bikedealerorotherqualifiedtechnician,butifyouwouldliketochangethespringsonyour own, follow these instructions:

1.Removetherearwheelfromthebike.

2.Removetheuppershockboltwheretheshockattachestotheframeandalsotheloweroneortwoboltsholding the shock or shock strut to the swingarm.

3.Loosenpreloadcollarfromthespringbyturningbothpreloadadjustercollarandspringsimultaneouslyandre- movepreloadcollarcompletelyorloosenpreloadcollarenoughtoremovelowerspringclip.

4.Removespringandreplacewithdesiredspring.Makesurethatthespringisthecorrectlengthfortheshock.Make suretopreloadthespringwithatleast1-2mmofpreload.

5.Reinstalltheshockontheframeandtorqueallshockmountboltsto150in-lbs.

Onceyouhaveselectedthecorrectspringforyou,youwillneedtosetupyoursuspensionwiththeproperamountof suspensionsag.Suspen- sion sag is the amount a shock compresses under the weight of the rider. All suspension systems should exhibit some amount of suspension sag. Girvin bikes and forks should all be set up properly with a certain amount of sag. The optimum sag amount for all of our rear and front suspension systems is 20% of the total shock shaft stroke, or 20% of the total wheel travel. For example:

OurCross-Linkforkshaveatotalshockshafttravelof52mmwhichyieldsatotalwheeltravelof76mm. Tocalculate the optimum sag for this fork, multiply 52mm by .2. The answer gives you a suggested sag , which for the Cross- Link is 10mm attheshock, or 15mmatthewheel. We suggest that you measure the amount ofsag at the shock insteadofthewheel.

See the next section on Preload to adjust the amount of sag. The suggested suspension sag amounts for our bikes and forks are as follows:

Frame (Rear shock) / Fork (Front shock)	Total Wheel Travel	Sag at Shock
CarbonFrame (5500C,4500C)	100mm	8mm
2-Tube frame (5000, 4000)	100mm	8mm
ExtremeFrame(Animal,Beast)	125mm	8mm
World Cup Frame (3000, 2000, 1000)	90mm	10mm
DownhillFrame(AnimalDH)	150mm	10mm
Cross- Link (All models)	76mm	10mm
Chubby	100mm	20mm
ChubbyLT	125mm	25mm

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