Converting ISO LD Front Hub to a ISO Lefty® LD Front Hub
Chris King Gen. 2 ISO LD Front Hubs are easily converted to work with Lefty® forks
by using our ISO Lefty® Upgrade Kit. When conver ting an ISO LD Front Hub to an
ISO Lef t y® LD Front Hub make sure that your LD Front Hub is designated with a
1720 serial number prefix, this number is found on the hubshell. LD Front Hubs with
a 1710 designation are not compatible with an ISO Lefty® LD Front Hub Conversion.
Follow the disassembly procedure on pg. 7 to remove the standard ISO one piece
axle and use the reassembly procedure in this addendum to install your ISO Lefty®
LD Front Hub axle.
Disassembly of ISO Lefty® LD Front Hub and ISO Lefty®
SuperMax Front Hub
(see Figure 7)
1. Remove hub from the fork prior to disassembly. The ISO Lef t y® LD Front Hub
and ISO Lefty® SuperMax Front Hubs are designed to be self- extracting. Inser t
a 5 m m h e x w r e n c h t h r o u g h t h e Le f t y ® a x l e e n d c a p a n d t u r n i n a c o u n t e r -
clockwise motion. The Cannondale® axle bolt will push against the Lefty® axle
end cap and pull the hub off of the fork.
*Removal of axle from front hub is only necessary for bearing service.
2 . U s i n g a n 1 0 m m h e x w r e n c h r e m o v e t h e L e f t y ® a x l e e n d c a p . N O T E - T h e
Lefty® axle end cap is left-hand thread (turn counter- clockwise to tighten and
clock wise to loosen). Take care not to over tighten the Lef t y® axle cap. *The
Cannondale® axle bolt is designed to nest in the axle cap and should come
off with the Lefty® axle end cap.
3. If not removed along with the Lefty® axle end cap, remove the Cannondale®
axle bolt from the axle.
4. Remove the disc brake rotor. *For ISO Lef t y® LD Front Hubs be sure to also
remove the Chris King 1mm disc spacer.
5. Insert a 2.5mm hex wrench into the adjusting clamp hex bolt, and loosen.
6 . W i t h t h e a d j u s t i n g c l a m p f a c i n g t o w a r d s y o u , h o l d o p p o s i t e e n d o f a x l e
stationary with the Spline Drive Hub Tool. For more information on this tool visit
http://chrisking.com/shop. Rotate the clamp in a counter-clockwise direction to
unscrew it from the Lefty® axle. If adjusting clamp is difficult to remove, inser t
a 2 . 5 m m h e x w re n c h i n t o “ h e l p e r h o l e” o n t h e a d j u s t i n g c l a m p a d j a c e n t t o
2 . 5 m m h ex b o l t. Us e t h e h ex w re n c h a s a l e ve r to u n s c re w
the adjusting clamp.
7. Remove the axle from the hubshell.
For bearing ser vice information see “Ser vice of the bearings” on
pg. 17 of the Chris King ISO Manual. Further disassembly requires
specialized tools. These tools come individually or in the Chris King
Hub Service Tool Kit, available from any authorized Chris King dealer,
or directly from Chris King Precision Components, visit our website
h t t p : / / c h r i s k i n g . c o m / t e c h / t e c h _ h u b s f o r s p e c i f i c I S O L e f t y ® L D a n d I S O L e f t y ®
SuperMax service information.
Reassembly of ISO Lefty® LD Front Hub and ISO Lefty®
SuperMax Front Hub
(see Figure 7)
1 . L i g ht l y gre a s e t h re a d s o n a d j u s t i n g c l a m p. A p p l y t wo d ro p s o f Tr i - Fl ow ™ to
9
Spline Drive Hub
Tool
