Hello Gentlemen!
Thank you for all your messages and sorry for the delayed response, I have a 2 year old and a 4 week old, things are chaotic!
About 4 years back I asked a friend to find me a Bridegstone XO-1. After months of searching, he couldn't find a single example that was my size. Instead he found this Rivendell Mountain. He put me in touch with the original owner who was very close to Grant, (he was an original board member of Rivendell.) I will paste the details of the bike he emailed to me a while back as it is a bit long winded:
It was in '94 that Grant began Rivendell Bicycle Works. I have been from the outset on the Board of Directors (it's just four of us, including Grant and his wife Mary), and a shareholder, so for me it's kind of the family business. We are old, good friends. I was part of the founding of Rivendell and had a hand in giving up ideas for bikes. So in 1995/6 we thought about making a far improved version of the Bridgestone MB-1 mountain bike. We had custom lugs made --- designed by Grant in homage to the French Nervex Pro---and used much the same geometry as the MB-1 but in fact closer to the X0-1 '93 (which used cantilevers while the purple '92s had caliper brakes, so less tire clearance). Our goal was a bike every bit as good on the trails as the MB-1 and much like the X0 on the street. We made a total of 15 bikes, perhaps fewer. The fabrication was done by Waterford in Wisconsin when Rivendell had a manager in house in Wisconsin to oversee the process. I know of two others but both were crashed and ruined. As far as I know this is the only perfect example left. It's about 18", it was made as a "medium." Parts were from the special Rivendell bin: Mavic 841 Starfish Triple cranks, Suntour XC Pro rear derailleur, XC Pro brakes, Suntour Power Ratchet bar end shifters. The rear hub is a very rare Ringle, the front Suntour (this mix and match was early Rivendell's choice). These were considered the cherry parts. Grant always gave me dibs. The Brooks Pro saddle was key but we sold the sprung B-61s too, so that was an option. The paint is a dark metallic blue, deep and easy on the eyes, the head tube was painted off-white in contrast ---this was also a Rivendell speciality of the time. In sum, the bike has the Bridgestone/Grant Petersen design and is a real rarity in every respect. I doubt there is another like it.
If you are wondering why its so clean.....well, after 2 kids and living in San Francisco, where bike theft is quite common, I hardly get to enjoy this beauty. I will be moving to Europe at the end of the year and hopefully will be able to put some miles on it ;)
Hope you enjoyed this little story of this rare bird!
Best,
Kazu