rattinox Retro Newbie Mar 14, 2018 #1 I have a 1992/3 Specialized RockHopper; does anybody know what type of steel tubing alloys they used in that time frame?
I have a 1992/3 Specialized RockHopper; does anybody know what type of steel tubing alloys they used in that time frame?
madjh 98+ BoTM Winner Yeti Fan Mar 15, 2018 #2 It shoud have a sticker with the alloy. I think it is a Direct A1 Drive Double Butted Cro-Mo, but I´m not sure.
It shoud have a sticker with the alloy. I think it is a Direct A1 Drive Double Butted Cro-Mo, but I´m not sure.
danson67 Retrobike Rider Feedback View Mar 15, 2018 #3 4130 Cro-Mo on a Rock hopper. Probably cold drawn seamless. All the best,
rattinox Retro Newbie Mar 16, 2018 #4 Re: Fremen MTB Many thanks, danson67. 4130 is Good Stuff. And it would be cold drawn seamless. Cosmic :mrgreen: So much to do this Spring for my Rockhopper. Projects within projects.
Re: Fremen MTB Many thanks, danson67. 4130 is Good Stuff. And it would be cold drawn seamless. Cosmic :mrgreen: So much to do this Spring for my Rockhopper. Projects within projects.
