# US 10,501,142 B2 · Motorcycle suspension system and seat mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,501,142 B2 - Document ID: US10501142B2 - Status: Granted - Kind: B2 - Application number: 15/151,229 - Filed: 2016-05-10 - Published: 2016-11-17 - Granted: 2019-12-10 - Earliest claimed: 2015-05-11 - Assignees: Triumph Designs Limited - Applicants: Triumph Designs Limited - Inventors: Ian Michael Kimber - Web page: https://patentgrep.com/patent/US10501142B2 ## CPC - B62K 25/283: {for cycles without a pedal crank, e.g. motorcycles} - B62K 11/04: characterised by the engine being between front and rear wheels - B62K 25/286: {the shock absorber being connected to the chain-stay via a linkage mechanism} - B62J 2001/085: {Seat pillars having mechanisms to vary seat height, independently of the cycle frame} - B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE - B62J: CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS ## Abstract A motorcycle (1) having front and rear ground-engaging wheels, the motorcycle (1) comprising a swing arm (5) supporting the rear wheel (3), a rear suspension unit (RSU) (12), a drop link (14) pivotally connected to the RSU (12) and pivotally connected to the swing arm (5), and a drag link (16) pivotally connected to the drop link (14). The drop link (14) extends between the RSU (12) and the drag link (16) for increasing a travel distance of the RSU (12) relative to a travel distance of the swing arm (5). The RSU (12) is mounted underneath a seat (42). ## Claims ### Claim 1 A bobber motorcycle having a front ground-engaging wheel, a rear ground-engaging wheel and a seat mechanism located below a top of a swing arm mounted mudguard, the seat mechanism comprising a seat mounting beam and a seat, the motorcycle comprising: i a swing arm supporting the rear wheel; ii a rear suspension unit (RSU); iii a drop link pivotally connected to the RSU and pivotally connected to the swing arm; and iv a drag link pivotally connected to the drop link, wherein the drop link extends between the RSU and the drag link for increasing a travel distance of the RSU relative to a travel distance of the swing arm, wherein the RSU is mounted directly underneath the seat mechanism, and wherein the RSU is centrally mounted with respect to a transverse direction of the motorcycle. ### Claim 2 (depends on 1) The motorcycle of claim 1, wherein the seat has a seat position that is lower than the top of the swing arm mounted mudguard. ### Claim 3 (depends on 1) The motorcycle of claim 1, wherein the seat has a seat position that is lower than a top of the rear wheel. ### Claim 4 (depends on 1) The motorcycle of claim 1, wherein a swing arm tube of the swing arm and left and right frame sections of a main frame are longitudinally aligned for giving the appearance of a single frame line, and wherein the RSU is located between the left and right frame sections. ### Claim 5 (depends on 1) The motorcycle of claim 1, wherein the RSU is located forward of the rear wheel. ### Claim 6 (depends on 1) The motorcycle of claim 1, wherein the RSU is located between the seat and the rear wheel with respect to a longitudinal direction of the motorcycle. ### Claim 7 (depends on 1) The motorcycle of claim 1, wherein the RSU is located beside at least one airbox with respect to a transverse direction of the motorcycle. ### Claim 8 (depends on 7) The motorcycle of claim 7, comprising two airboxes, wherein the RSU is located between the airboxes with respect to the transverse direction of the motorcycle. ### Claim 9 (depends on 1) The motorcycle of claim 1, wherein the seat mounting beam is cantilevered from a main frame of the motorcycle, and the seat is releasably secured to the mounting beam so as to be adjustable over a range of seat positions in a longitudinal direction of the mounting beam. ### Claim 10 (depends on 9) The motorcycle of claim 9, wherein at least a lowest position of the seat is lower than a top of the rear wheel of the motorcycle. ### Claim 11 (depends on 9) The motorcycle of claim 9, wherein the seat is adjustable in a longitudinal direction with respect to the motorcycle. ### Claim 12 (depends on 9) The motorcycle of claim 9, wherein the seat is adjustable in a vertical direction with respect to the motorcycle. ### Claim 13 (depends on 9) The motorcycle of claim 9, wherein the seat comprises a connecting means and the mounting beam comprises at least a slot for adjustably connecting the seat to the mounting beam. ### Claim 14 (depends on 9) The motorcycle of claim 9, wherein the seat and the seat mounting beam extend over the RSU. ### Claim 15 A bobber motorcycle having a front ground-engaging wheel, a rear wheel ground-engaging wheel, and a seat mechanism located below a top of a swing arm mounted mudguard, the seat mechanism comprising a seat mounting beam and a seat, the motorcycle comprising: i a swing arm supporting the rear wheel; ii a rear suspension unit (RSU); iii a drop link pivotally connected to the RSU and pivotally connected to the swing arm; and iv a drag link pivotally connected to the drop link, wherein the drop link extends between the RSU and the drag link for increasing a travel distance of the RSU relative to a travel distance of the swing arm, wherein the RSU is mounted directly underneath the seat mechanism, wherein the seat mounting beam is cantilevered from a main frame of the motorcycle, and the seat is releasably secured to the mounting beam so as to be adjustable over a range of seat positions in a longitudinal direction of the mounting beam, and wherein the RSU is centrally mounted with respect to a transverse direction of the motorcycle. ### Claim 16 (depends on 15) The motorcycle of claim 15, wherein a swing arm tube of the swing arm and left and right frame sections of the main frame are longitudinally aligned for giving the appearance of a single frame line, and wherein the RSU is located between the left and right frame sections. ### Claim 17 (depends on 15) The motorcycle of claim 15, wherein the RSU is located beside at least one airbox with respect to a transverse direction of the motorcycle. ### Claim 18 (depends on 15) The motorcycle of claim 15, wherein the seat is adjustable in a vertical direction with respect to the motorcycle. ### Claim 19 (depends on 15) The motorcycle of claim 15, wherein the seat comprises a connecting means and the mounting beam comprises at least a slot for adjustably connecting the seat to the mounting beam.