29.8mm is the perfect size for most of Soma's steel frames
Manufacturer Part Number 38826
Model Soma Bolt-On Seat Clamp
Currently Out of Stock Sorry, 'Soma Bolt-On Seat Clamp, 29.8mm (1-1/8") - Silver' is currently out of stock. Please check back later or contact Bikeman for an expected availability date. Refer to our Shipping Terms for more information.