This set of shocks have 365mm pin to pin mounting. The top pin / bush is 14mm and the bottom is 10mm. Black Rear Shock Absorbers. Suzuki GS 650 GT (1981-1983). Suzuki GS 650 G Katana (1981-1982). Suzuki TS 250 (PEI Model) (1971-1978).
This Rear Shock Absorbers would be a great fit for a Yamaha TS250 GS650.