Hi. After breaking my RM Altitude 1995 seat clamp, and due to my engineering background, I started to think in producing an spare unit because I couldn’t find a single unit. There is a Thread in Retrobike about the design period. I did FEA analysis, and this design and the use of 6061T6 aluminium instead of forged/casted one will increase a lot the strenght) , but I wanted to made it  almost identical to the original as many of you prefer so. Available in 30mm or 31.8mm in colors you can see.

So I can offer the clamps for:

26 € for the clamp + shipping from Barcelona (Catalonia). I’ll try to use cheap shipping but I don’t know If I can send it as a letter. Obviously, cost of shipping is the same for one or for 20.

Available in Gold, Black, Red, and Silver, all anodised. I checked the RM bikes that used it and they cover 90% of bikes produced in 1993-1996 with tilted seat tube.
Included M6x20 Titanium Grade bolt as suggested by the forum.

Shiping insured and tracked:
UE: 15 €
Canada/Usa/Overseas: 25 €