integrated SP with a short length of 22.2mm plain top BMX post out the top and a separate clamp.
Have you considered a bigger top to your ISP? That would let you use a normal ISP topper. Ritchey is in 3 sizes up to 38.35mm, which is presumably big enough that you could wrap your bamboo with some crabon fribé to build it up to the required diameter and roundness
@gbj_tester started
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Have you considered a bigger top to your ISP? That would let you use a normal ISP topper. Ritchey is in 3 sizes up to 38.35mm, which is presumably big enough that you could wrap your bamboo with some crabon fribé to build it up to the required diameter and roundness