James Wilier Le Roi
Here are some finished photos of James’ Le Roi which I stated assembling last week.
The stated seatpost size for this frame was 31.8mm, a strange measurement as the most common size is 31.6mm. With the seat collar removed it was very clear that a 31.6 post was too small so I looked at various options for a shim or 31.8 post. James found a 31.8 Thomson post at Capital Cycles but it was zero offset which was going to compromise bike-fit and it’s diameter was slightly too large for the frame so it became clear that it wasn’t going to work.
I made a shim from brass stock which fits under the collar and allows a 31.6 post to fit perfectly. The lip on the seat collar was too large which was causing the collar to clamp-down onto the post (not the frame) but a few minutes on the lathe reduced the lip to less than the thickness of the seattube. Without the collar correctly machined a 31.6 post would feel snug because of the friction against the collar but could potentially wreck havoc on the frame. With the shim fitted there is almost no visual indication that it’s there and the performance will be great.
The rest of the build went together quite well and the final result is a very nice looking bike! The heavy Bianchi post will get traded for something a little lighter, and personally I’d love to see that horrible single-bolt Kore stem vanish :-)
7.6kg without pedals and cages (but with a heavy seatpost and stem)























