Ascent Revolution Bottom Brackets BSA giant SSR (standard) Geometry 45 48 MTPTP006SP26MA A SSR (standard) Geometry 45 48 51 54 56 58 60 Recommended Height 155–162 162–168 167–173 172–178 177–183 182–188 185–195 A Reach 364 370 375 382 389 397 404 B Stack 511 519 528 543 563 583 598 C Seat Tube Angle 75 74 Sealing: Supplied with two rubber seals to achieve an airtight seal with any rim profileAirflow: 5 way air path for maximum airflow while remaining compatible with tyre insertsValve Length Options: 40 mm and 60 mmCap: Standard valve cap and Presta valve core remover capValve Core: Removable Presta valve coreAvailable Colors: Black ETA:: 1 2 Weeks and smoothness