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| Category: | Chainrings |
| Name: | Shimano CR-BP10 & CR-BP20, Biopace |
| Brand: | Shimano |
| Model: | CR-BP10 & CR-BP20 |
| Years: | 1980's |
| Country: | Japan |
| Weight: | 81 grams |
| Added By: | redxj on 10/31/07 |
| Updated By: | JFischer on 01/14/10 |
Additional Photos - click for full size |
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| Identifying Marks | Shimano Biopace and tooth count | BCD  | 130mm |
| Tooth Count Range | | Ring Position | Large; Small |
| Chain Pitch | | Chain Width | |
| Material | | | |
| Additional Resources |
| Resources: |  Reference & Charts Catalogs |
Shimano Model Number Prefix List:
| BB Bottom Bracket |
BL Brake Lever |
BR BRake |
| CB Coaster Brake |
CJ Cassette Joint |
CN ChaiN |
| CP Chain Protecto |
CR Chain Ring |
CS Cassette Sprockets |
| DF chain DeFlector |
DH Dynamo Hub |
FC Front Crank |
| FD Front Derailleur |
FE Fork Ends |
FH FreeHub |
| FS Front Suspension |
HB HuB |
HD HanDle bar |
| HP Head Parts (Head Set) |
HS Handle Stem |
IF Inter-3 Freehub |
| LP LamP |
MF Multi Freewheel |
PD PeDal |
| RD Rear Derailleur |
RH Rollerbrake Hub |
RM RiM |
| RR ReflectoRs |
RS Rear Suspension |
SB Shift Brake lever (Nexus, ?) |
| SC Speed Calculator (cycle computer) |
SF Single Freewheel Freilaufritzel |
SG Speed chanGe hub |
| SH SHoes |
SL Shift Lever Schalthebel |
SM SMall parts |
| SP Seat Post |
SQ Seat Quick release |
SS Single Sprocket |
| TL TooL |
WH WHeel
| ST Shift Brake Lever (STI, Rapid Fire, etc) |
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