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Osymetric for the road
There are 54 products.

Osymetric for the road has been designed so that the radius of the chainring varies in proportion to the force produced by the leg from top dead center to bottom dead center.
In fact: at top dead center the leg is twice weaker than when the crank is horizontal, which implies a slowing down of the angular speed at top dead center which produces asphyxiation of the muscles, in particular the vastus lateralis due to resistance torque too strong for the leg, and not a recovery zone as is commonly accepted.

The objective of the geometry of the Osymetric road chainring has been to make it easier to work where the leg is weak (top dead center and bottom dead center which implies a small radius) and to provide work where the leg is strong.


With Osymetric for the road, the legs pass through dead points more quickly, which are therefore relatively less "dead": therefore more efficient.

52/38 TEETH PINK 9100/R8000/R7000

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 R7000 52 + 38  DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Combinaison : 38/52 SERIE LIMITEE!!!! ROSE - PINK
248,00 €
Available

52/38 TEETH RED 9100/R8000

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 52 + 38  DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Combinaison : 38/52 SERIE LIMITEE!!!! ROUGE - RED KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
248,00 €
Out of stock

52/38 TEETH YELLOW 9100/R8000...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 R7000 52 + 38  DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Combinaison : 38/52 LIMITED SERIES!!!! JAUNE - YELLOW KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
248,00 €
Out of stock

OSYMETRIC 46 D EXT 110 4B 9000

OSYMETRIC COMPATIBLE SHIMANO 4 BRANCHES 46 DENTS TEETH 110 BCD 4 BRANCHES/ARMS OUT CHAINRING Combinaison recommandée pour un usage optimal : 36/46 34/46 NOIR- BLACK KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
137,00 €
Available

set of 4 plastic covers Dura Ace 9100

set of 4 plastic covers Dura Ace 9100 The torque for the bolts has not to be important inferior at 10N/m
21,48 €
Available

OSYMETRIC R-9100/R-8000/R-7000 46 T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 - R7000 46 DENTS TEETH 110 BCD 4 BRANCHES/ARMS OUTER CHAINRING NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Combinaison recommandée pour un usage optimal : 36/46 34/46 NOIR- BLACK KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
137,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 58 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 - R7000 58 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS OPTIMAL SHIFTING : 46/58 TEETH NOIR- BLACK KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
137,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 56 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 - R7000 56 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS OPTIMAL SHIFTING : 44/56 46/56 TEETH NOIR- BLACK KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
137,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 46 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 - R7000 46 DENTS TEETH 110 BCD 4 BRANCHES/ARMS INNER CHAINRING NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Optimal shifting : 46/58 NOIR- BLACK
111,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 44 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 - R7000 44 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Optimal shifting : 44/54 44/56 NOIR- BLACK
111,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 54 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 - R7000 54 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS OPTIMAL SHIFTING : 42/54 TEETH NOIR- BLACK KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
137,00 €
Available

OSYMETRIC R-9100/R-800/R-7000 42 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 42 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Optimal shifting : 42/52 42/54 NOIR- BLACK
111,00 €
Available

OSYMETRIC R-9100/R8000/R-7000 36 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 - R7000 36 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Optimal shifting : 36/50 NOIR- BLACK
111,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 34 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070- R7000 34 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Optimal shifting : 34/50 NOIR- BLACK  
111,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 50 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070- R7000 50 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS Optimal shifting : 34/50 36/50 NOIR- BLACK KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
137,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 38 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070- R7000 38  TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS optimal shifting : 38/52 NOIR- BLACK  
111,00 €
Available

OSYMETRIC R-9100/R-8000/R-7000 52 D/T...

OSYMETRIC COMPATIBLE NEW DURA ACE 9100 FC-R9100 - R-9150 - R8000 - R8020 - R8050 - R8070 52 DENTS TEETH 110 BCD 4 BRANCHES/ARMS NON - NO : Compatible NEW FSA 110 4 BRANCHES ARMS OPTIMAL SHIFTING : 38/52 TEETH NOIR- BLACK KIT DE MONTAGE INCLUS ASSEMBLY SET ENCLOSED
137,00 €
Available

OSYMETRIC 38 T/D 112mm CAMPA 4 B/A

OSYMETRIC BCD1112mm - 38 TEETH DENTS compatible CAMPA 4 BRANCHES ARMS Nous recommandons pour un meilleur shifting la paire : 38/52 DENTS Shifting it's fit for : 38/52 TEETH
124,00 €
Available

OSYMETRIC 52 T/D 145mm CAMPA 4B/A

OSYMETRIC BCD145mm - 52 TEETH DENTS compatible CAMPA 4 BRANCHES ARMS inclus kit d'assemblage, assembly kit included Nous recommandons pour un meilleur shifting la paire : 38/52 DENTS Shifting it's fit for : 38/52 TEETH
149,00 €
Available

Kit 4 vis chemises / set of 4 bolts...

kit de 4 chemises et vis pour plateaux doubles nécessaires pour tous les Shimano set of 4 bolts and nuts for double chainrings necessary for all Shimano
11,24 €
Available

OSYMETRIC 34 T/D 112mm CAMPA 4 B

OSYMETRIC BCD112mm - 34 TEETH DENTS compatible CAMPA 4 BRANCHES ARMS Nous recommandons pour un meilleur shifting la paire : 34/50 DENTS Shifting it's fit for : 34/50 TEETH
124,00 €
Available

OSYMETRIC 36 T/D 112mm CAMPA 4 B/A

OSYMETRIC BCD112mm - 36 TEETH DENTS compatible CAMPA 4 BRANCHES ARMS Nous recommandons pour un meilleur shifting la paire : 36/50 DENTS Shifting it's fit for : 36/50 TEETH
124,00 €
Available

OSYMETRIC 50 T/D 145mm CAMPA

OSYMETRIC BCD145mm - 50 TEETH DENTS compatible CAMPA 4 BRANCHES ARMS inclus kit d'assemblage, assembly kit included Nous recommandons pour un meilleur shifting la paire : 36/50 DENTS ou 34/50 Shifting it's fit for : 36/50 TEETH or 34/50 TEETH
149,00 €
Available

OSYMETRIC ERGOAERO 58/130 5B/H

Special CLM/ TIME TRIAL TRIATHLON ERGO AEROSYMETRIC Profil plein - Full designed aluminium 7075-T6 Noir / Black Assembly kit enclosed 11/10 vitesses / speed
149,00 €
Available

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