11. Loosen the clamp bolt, but not too much. Make sure that the original seatpost slides in and and out easily, but that the bolt is not loose. The idea is that the seat lug is round and at the original diameter, but not able to spread from the cutting forces.
Also, if you clean with brake cleaner, wipe it off the paint immediately. Laing On Sat, Nov 8, 2025 at 4:52 PM Nick Payne <[email protected]> wrote: > On Friday, 7 November 2025 at 9:57:17 am UTC+11 Garth wrote: > > A 27.2 ID of a 28.6 OD steel frame is completely normal. Tons of steel > frames are like that. 27.2 is by far the most common post. Not only is that > .7mm enough, you also have the lugs that reinforce the top of the seat > tube. I see many of the current Riv models are taking 27.2 posts now. So > they appear to be moving away from seemingly everything taking a 26.8 post > > > Yes, I was rather surprised when I bought an Appaloosa frame in 2020 and > found that it didn't take a 27.2 seatpost, given that the three previous > Rivs I'd owned all took 27.2. Anyway, I found that the 26.8 seatpost > supplied with the frame was a loose fit, as was an old Suntour XC Pro 26.8 > seatpost that I had, and a good quality vernier caliper showed the internal > seat tube diameter to be slightly over 26.8, so I bought a 27.0 S65 Nitto > seatpost and used my adjustable reamer to make the 27.0 post a perfect > sliding fit in the seat tube. > > Nick Payne > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/rbw-owners-bunch/4630e605-2070-47e0-968d-23633ad8c78en%40googlegroups.com > <https://groups.google.com/d/msgid/rbw-owners-bunch/4630e605-2070-47e0-968d-23633ad8c78en%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/rbw-owners-bunch/CADXkOiNLBrUPkkC5KyrGNLaQyP1%3D%2BLjJ%2BU9HzUYqNjU6ikn%2BGQ%40mail.gmail.com.
