Bicycle shock with extension arms

Abstract

A bicycle frame can have a main frame, a sub-frame and a shock. The sub-frame can move in relation to the main frame and the shock can be used to regulate that relationship. A linkage connected to the main frame, sub-frame and shock can also be used to regulate the relationships and control the rotation. The shock can further have a pair of extension arms which connect to the linkage.

1 . A bicycle assembly comprising:
 a main frame comprising a seat tube, a head tube and a connecting tube connecting the seat tube and the head tube;   a sub-frame configured to rotate with respect to the main frame comprising a pair of seat stays and a pair of chain stays;   a linkage pivotally connected to the seat tube and the pair of seat stays; and   a shock configured to regulate the rotation of the sub-frame with respect to the main frame, the shock comprising:
 a shock body pivotally connected to the main frame at a first end of the shock; and 
 an extension body positioned at a second end of the shock opposite the first end, the extension body positioned to straddle the seat tube and comprising a pair of extension arms, each extension arm pivotally connected to the linkage, the connection of each of the extension arms to the linkage being combined respectively with the connection of one of the seat stays to the linkage. 
   
     
     
         2 . The bicycle assembly of  claim 1 , wherein one of the seat stays of the pair of seat stays is pivotally connected to one of the chain stays of the pair of chain stays. 
     
     
         3 . The bicycle assembly of  claim 1 , further comprising a bottom bracket and wherein the seat tube extends from the connecting tube to the bottom bracket. 
     
     
         4 . The bicycle assembly of  claim 1 , wherein the shock comprises an air spring with an outer sleeve. 
     
     
         5 . The bicycle assembly of  claim 4 , wherein the outer sleeve screws into the extension body. 
     
     
         6 . The bicycle assembly of  claim 1 , further comprising a dampening mechanism. 
     
     
         7 . The bicycle assembly of  claim 1 , wherein the shock comprises three eyelets, one on the shock body and one on each extension arm. 
     
     
         8 . The bicycle assembly of  claim 1 , further comprising a fork, a saddle and two wheels. 
     
     
         9 . The bicycle assembly of  claim 1 , further comprising a fluid reservoir. 
     
     
         10 . The bicycle assembly of  claim 1 , wherein the pivot at each extension arm and the linkage is positioned behind a central axis of the seat tube. 
     
     
         11 . A bicycle assembly comprising:
 a main frame comprising a seat tube, a head tube and a connecting tube connecting the seat tube and the head tube;   a sub-frame configured to rotate with respect to the main frame comprising a pair of seat stays and a pair of chain stays, one of the seat stays of the pair of seat stays being pivotally connected to one of the chain stays of the pair of chain stays;   a linkage pivotally connected to the seat tube and the pair of seat stays; and   a shock configured to regulate the rotation of the sub-frame with respect to the main frame, the shock comprising:
 a shock body pivotally connected to the main frame at a first end of the shock; and 
 an extension body positioned at a second end of the shock opposite the first end, the extension body comprising a pair of extension arms, each extension arm pivotally connected to the linkage. 
   
     
     
         12 . The bicycle assembly of  claim 11 , wherein the connection of each of the extension arms to the linkage is combined respectively with the connection of one of the seat stays to the linkage. 
     
     
         13 . The bicycle assembly of  claim 11 , wherein the extension body is positioned to straddle the seat tube. 
     
     
         14 . The bicycle assembly of  claim 11 , further comprising a bottom bracket and wherein the seat tube extends from the connecting tube to the bottom bracket. 
     
     
         15 . The bicycle assembly of  claim 11 , wherein the shock comprises an air spring with an outer sleeve. 
     
     
         16 . The bicycle assembly of  claim 15 , wherein outer sleeve screws into the extension body. 
     
     
         17 . The bicycle assembly of  claim 11 , further comprising a dampening mechanism. 
     
     
         18 . The bicycle assembly of  claim 11 , wherein the shock comprising three eyelets, one on the shock body and one on each extension arm. 
     
     
         19 . The bicycle assembly of  claim 11 , further comprising a fork, a saddle and two wheels. 
     
     
         20 . The bicycle assembly of  claim 11 , further comprising a fluid reservoir.