American Classic X 12 142 Conversion For Disc 225 Hub Manual

User Manual: American Classic X-12 142 Conversion for Disc 225 Hub Manual

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Identifying  Your  Rear  MTB  Hub  Page  1
Please  use  this  document  to  identify  your  American  Classic  rear  MTB  hub.  There  are  3  different  rear  MTB  hubs:  
Currently  Supported  -­    Disc  225  -­  17mm  Axle  (Current  Style)  /  Terrain  Disc  (Current  Style)  
No  Longer  Supported  and  Discontinued  -­  Terrain  Disc  (Older  Style)  /  Disc  225  -­  15mm  Axle  (Old  Style)  See  page  2.

Disc  225  -­  17mm  Hub  (Current  Style)
This  hub  uses  four  6803-­C3  fully  sealed  bearings.  Two  in  the  hub  shell  and  two  in  the  freehub  body.  Stainless  steel  
bearings  standard.  Ceramic  bearings  are  available  as  an  upgrade.  Not  Campagnolo  compatible.  
Patent  Number  and  Serial  Number.

Elongated  Hub  Shell.

Terrain  Hub
There  are  two  different  versions  of  the  Terrain  rear  mountain  hub.  To  identify,  see  the  non-­drive  side  of  the  hub  
(side  without  the  cassette).  Terrain  hubs  are  in  Terrain  and  Terrain  Tubeless  wheel  sets.    Some  Terrain  hubs  
say  “TERRAIN”  on  them.  Please  note,  you  can  not  determine  which  bearing  sizes  you  need  from  looking  at  
the  outside  of  the  hub.  

DISCONTINUED

Terrain  Hub  (Current  Style)

Terrain  Hub  (Older  Style)

Knurled
Plastic

Rubber  

If  you  are  working  with  a  Current  Style  (knurled  cap)  hub,  please  go  to  the  HELP  tab  and  click  MANUALS  then  
click  “Terrain  Rear  Disc:  Overhaul  /  Bearing  Change”  for  futher  information.
If  you  are  working  with  an  Older  Style  (rubber  cover)  hub  it  has  been  discontinued  and  is  no  
longer  supported  by  American  Classic.  No  parts  are  in  stock  or  available.
Proper  re-­assembly  is  important  to  rider  safety.
All  repairs  should  be  performed  by  a  professional  bicycle  mechanic.
VDOHV#DPFODVVLFFRP‡ZZZDPFODVVLFFRP

Identifying  Your  Rear  MTB  Hub  Page  2
PP+XE 2OG6W\OH &DVVHWWH%RG\,GHQWL¿FDWLRQ
Please  use  the  below  image  to  identify  if  you  have  an  older  Disc  225  -­15mm  rear  disc  hub.  If  your  hub  has  any  of  
the  following  features,  it  can  not  be  upgraded  with  new  parts  and  is  discontinued  and  out  of  stock.  We  are  not  
rebuilding  wheels  with  the  15mm  hubs.  15mm  hubs  are  not  Campagnolo  compatible.  

Disc  225  -­  15mm  Hub  (Old  Style)
This  hub  uses  four  15267  fully  sealed  bearings.  Two  in  the  hub  shell  and  two  in  the  freehub  body.  Ceramic  bearing  
upgrade  is  not  available.
Patent  Number  only.
Opposite  side  of  logo.

Rotor  Mount  threads  onto  
hub  shell.

CAN  NOT  
BE  UPGRADED.
Parts  Discontinued.

3-­Pin  Style  Cassette  Bodies:

These  hubs  and  parts  have  been  discontinued  and  out  of  stock.

12  Tooth  3-­Pin  Style  
15mm  cassette  body.

24  Tooth  3-­Pin  Style  
15mm  cassette  body.

CAN  NOT  
BE  UPGRADED.

CAN  NOT  
BE  UPGRADED.

Parts  Discontinued.

Parts  Discontinued.

Grease  Port  Hubs: These  hubs  can  not  be  upgraded  with  new  parts  and  is  discontinued  and  out  of  stock.
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CAN  NOT  
BE  UPGRADED.
Parts  Discontinued.

CAN  NOT  
BE  UPGRADED.
Parts  Discontinued.

Proper  re-­assembly  is  important  to  rider  safety.
All  repairs  should  be  performed  by  a  professional  bicycle  mechanic.
VDOHV#DPFODVVLFFRP‡ZZZDPFODVVLFFRP

07%'LVFPP[PP7KUX$[OH5HWUR¿W

          Page  1

Making  Your  MTB  Disc  225  Hub  12mm  x  142mm  Thru-­Axle  Compatible.

‡ 12mm  x  142mm  Thru-­Axle,  is  compatible  with  the  Disc  225  17mm  axle  hub  only.    Please  make  sure  you  are  working  with  a  17mm  Disc  225  
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‡ Tools  Needed:  Two  19mm  cone  wrenches,  135mm  quick  release,  axle  vise  or  smooth  clamp.
‡ While  disassembling  the  hub,  keep  all  loose  parts  organized  on  a  clean  rag  or  paper  towel.  Do  NOT  modify  or  bend  the  cassette  
body  loop  spring  in  any  way.  Proper  re-­assembly  is  important  to  rider  safety.
1

2

1.  Using  two  19mm  cone  wrenches,  
loosen  the  lock  and  adjusting  nut.

3

(A)

2.  Remove  lock  nut.

(B)

(C)

A.  Some,  but  not  all,  
B.  Remove  adjuster  nut. C.  Remove  spacer  with  
hubs  have  a  1.5mm  axle  
attached  dust  seal.  
spacer.
+XEVZLWK³III´DWWKH
end  of  the  serial  number  
do  not  have  this  spacer.

Very Important!
/RFDWHWKHPPD[OHVSDFHUZKLFKLV
either  stuck  to  the  drive  side  hub  shell  
bearing  or  the  inner  bearing  on  the  
cassette  body.  This  spacer  is  critical  to  
maintaining  the  correct  engagement,  do  
not  lose!

4

Reuse  the  dust  seal  for  Shimano  /  
65$0RQO\QRWIRU65$0;;
DO  NOT  reuse  this  axle  spacer.
3.  Separate  cassette  body  and  axle  from  the  hub  shell  by  grabbing  the  body  and  pulling  out  
from  the  drive  side.
5

IMPORTANT!
PPVSDFHU

5.  Shimano/SRAM 9/10 12x142mm Axle Assembly  
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join  the  axle,  cassette  body  and  spacers  with  the  hub  shell.
2UGHU(QG&DS!6SDFHUZLWK'XVW6HDO!6KLPDQRFDVVHWWHERG\
!PPVSDFHU!+XEVKHOO

4.  Remove  large  black  pawl  seal.  

Spacer  with  NO  DUST  SEAL

IMPORTANT!
PPVSDFHU

SRAM XX1 12x142mm Axle Assembly  
:LWKDWKLQOD\HURIFOHDQJUHDVHFRDWLQJWKHFDVVHWWHERG\WHHWK
join  the  axle,  cassette  body  and  spacers  with  the  hub  shell.

2UGHU(QG&DS!6SDFHU12'XVW6HDO!6UDP;;ERG\!PP
VSDFHU!+XEVKHOO
Continue  to  Page  2.
Proper  re-­assembly  is  important  to  rider  safety.
All  repairs  should  be  performed  by  a  professional  bicycle  mechanic.
VDOHV#DPFODVVLFFRP‡ZZZDPFODVVLFFRP

07%'LVFPP[PP7KUX$[OH5HWUR¿W

          Page  2

Making  Your  MTB  Disc  225  Hub  12mm  x  142mm  Thru-­Axle  Compatible.
Very Important:

6

6.  The  large  black  Pawl  Seal  MUST  be  
installed  after  the  cassette  body  and  axle  
have  been  joined  with  the  hub  shell.
:LWKWKHD[OHSXVKHGFRPSOHWHO\LQWRWKH
hub  shell  and  pawls  engaged  with  the  cas-­
sette  body,  install  the  large  black  pawl  seal.

NOTE:  After  completing  Step  6,  
be  sure  the  seal  is  securely  in  the  
groove  on  the  cassette  body  and  you  
can  rotate  the  body  freely  without  the  
seal  moving.  
A  bit  of  Tri-­Flow®  or  similar  lubricant  
will  help  with  friction  between  the  
groove  in  the  body  and  this  seal.

Final Hub Assembly:
7

(A)

(B)

(C)

7.  Grease  the  threads  and  install  the  new  spacer  with  dust  seal  -­OR-­  if  you  have  a  serial  “III”KXEWGR127XVHWKHVSDFHULQVWDOOGXVWVHDO
RQWRWKHDGMXVWLQJQXWDQGFRQWXLQH$ )LQJHUWLJKWHQWKHDGMXVWLQJQXWZLWKWKHVKRXOGHUVLGHIDFLQJWKHKXEVKHOO % ,QVWDOOWKHORFNQXWDQG
¿QJHUWLJKWHQ-­OR-­  if  you  have  a  serial  “III” hub  re-­use  your  6.5mm  lock  nut  or  1.5mm  spacer  (Step  2A)  with  5mm  lock  nut.  (C)  Using  two  
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9

8

8.  Make  sure  the  lock  nut  is  fully  threaded  
onto  the  axle  and  place  threadless  end  cap  
on  axle.

9.  Pressing  in  the  end  cap.  
Place  a  quick  release  through  the  axle  with  the  lever  on  the  drive  side.    Tighten  quick  release  
and  clamp  down,  the  end  cap  will  partially  press  into  the  axle.    Continue  to  tighten  the  quick  
release  and  clamp  down  until  the  end  cap  is  fully  pressed  into  the  axle.
Continue  to  Page  3.

Proper  re-­assembly  is  important  to  rider  safety.
All  repairs  should  be  performed  by  a  professional  bicycle  mechanic.
VDOHV#DPFODVVLFFRP‡ZZZDPFODVVLFFRP

07%'LVFPP[PP7KUX$[OH5HWUR¿W

          Page  3

Making  Your  MTB  Disc  225  Hub  12mm  x  142mm  Thru-­Axle  Compatible.
Final Bearing Adjustment In Frame:
The  purpose  of  adjustability  is  to  extend  the  life  of  your  bearings,  reduce  friction  and  rolling  resistance  to  boost  performance.  The  desired  
DGMXVWPHQWIRU$PHULFDQ&ODVVLFKXEVLVGHVFULEHGDV³VOLJKWO\PRUHWKDQQRSOD\´DVWRQRWRYHUORDGWKHEHDULQJV6RPHSOD\ZLOOEHUHPRYHG
with  the  clamping  action  of  your  quick  release. Be  sure  the  two  outer  dust  seals  on  each  end  of  the  axle  are  covering  the  bearings  completely.    
This  adjustment  is  the  same  for  road  and  mountain  wheel  sets.
10

11

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Hold  the  adjusting  nut  in  place  with  a  19mm  cone  wrench,  still  
one  half  rotation  loose  from  Step  7,  tighten  the  lock  nut  against  
the  adjusting  nut.  Once  the  lock  nut  is  tight,  check  for  the  desired  
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WKDQQRSOD\´,IWKHDGMXVWPHQWLVQRWFRUUHFWFRQWLQXHWR6WHS

11.    Hold  the  adjusting  nut  in  place  and  loosen  the  
lock  nut.  Slightly  tighten  or  loosen  the  adjusting  nut  
DQGKROGLQSODFH:LWKWKHDGMXVWLQJQXWLQSODFH
WLJKWHQGRZQWKHORFNQXW:LJJOHULP5HSHDW6WHS
until  the  desired  adjustment  is  acheived.  Make  sure  
WKHORFNQXWLVWLJKWHQHGGRZQZKHQ¿QLVKHG

Removing Syntace X12 Axle:

Removing  the  end  cap.  Using  a  smooth  clamp,  axle  vise,  or  pliers  with  a  rag  to  hold  the  
drive  side  end  cap,  loosen  the  lock  nut  with  a  19mm  cone  wrench.    The  lock  nut  will  push  
the  non-­drive  side  end  cap  free  from  the  axle.

Once  the  end  cap  is  free  from  the  axle  
IROORZWKHRYHUKDXOGRFXPHQW³07%'LVF
+XEPP±2YHUKDXO%HDULQJ&KDQJH´
at  www.amclassic.com  to  put  the  quick  
release  axle  back  in.

Proper  re-­assembly  is  important  to  rider  safety.
All  repairs  should  be  performed  by  a  professional  bicycle  mechanic.
VDOHV#DPFODVVLFFRP‡ZZZDPFODVVLFFRP



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