Advertise on Bikeforums.net



User Tag List

Results 1 to 11 of 11
  1. #1
    Senior Member
    Join Date
    Mar 2009
    Posts
    305
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Bridgestone Headtubes/Headsets -- JIS or ISO???

    Just wondering if anyone knows if old Bridgestones like the RB-1/RB-2 require an ISO or a JIS headset?
    Thanks!

  2. #2
    OUTLAW BIKER merckx_rider's Avatar
    Join Date
    Aug 2008
    Location
    So Cal
    My Bikes
    Eddy Merckx team 7-11 Corsa Extra Full Dura Ace
    Posts
    459
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Have any pics?
    http://www.gotbiz.com/uweb/images/freewebsite_uweb.gif The Creator of Uweb! Worlds Best Online Webpage Editor only available at gotbiz.com
    Free Website for your business at gotbiz.com

  3. #3
    Perineal Pressurized dobber's Avatar
    Join Date
    Oct 2003
    Location
    In Ebritated
    Posts
    6,556
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'd be willing to wager ISO.
    This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.

  4. #4
    surly old man jgedwa's Avatar
    Join Date
    Sep 2006
    Location
    Carlisle, PA
    My Bikes
    IRO Mark V, Karate Monkey half fat, Trek 620 IGH, Cannondale 26/24 MTB, Amp Research B3, and more.
    Posts
    3,290
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Oh, I would bet good money on JIS.

    jim
    Cross Check Nexus7, IRO Mark V, Trek 620 Nexus7, Karate Monkey half fat, IRO Model 19 fixed, Amp Research B3, Surly 1x1 half fat fixed, and more...
    --------------------------
    SB forever

  5. #5
    Senior Member vredstein's Avatar
    Join Date
    Aug 2008
    Location
    Tucson, Arizona
    My Bikes
    '02 Lemond Buenos Aires, '98 Fuji Touring w/ Shimano Nexus premium, '06 Jamis Nova 853 cross frame set up as commuter, '03 Fuji Roubaix Pro 853 back up training bike
    Posts
    701
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The inside diameter of my 1989 MB6 is 29.84 mm. The fork's crown takes a 26.4 mm race.
    "See, it's not that getting wet is a big deal. Really, it's what you're getting wet with.
    Fenders....because it's probably urine."
    Bike Snob NYC

  6. #6
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,753
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    My '85 Bridgestone 400 came with a JIS crown race and I had the LBS mill it down to ISO size when I replaced the headset. The ISO cups seemed to fit properly in the headtube so the OEM may have been a mixed size.

    By the time the RB series came along I believe they were all ISO.

  7. #7
    Senior Member
    Join Date
    Mar 2009
    Posts
    305
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yes, the bike in particular is an early 90s RB-2, one of the Grant Peterson designed ones. I would guess its ISO but wanted to ask. Dont have the bike yet, or else I would measure.
    Wanted to order a new headset while I am waiting for the bike.

  8. #8
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,753
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by kirke View Post
    Wanted to order a new headset while I am waiting for the bike.
    I'd wait until you have the bike. The delay can't be that much and not nearly as long as getting the wrong headet and having to replace it

  9. #9
    surly old man jgedwa's Avatar
    Join Date
    Sep 2006
    Location
    Carlisle, PA
    My Bikes
    IRO Mark V, Karate Monkey half fat, Trek 620 IGH, Cannondale 26/24 MTB, Amp Research B3, and more.
    Posts
    3,290
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Yeah, the bike gods are cruel. Whatever size you order will invariably be wrong. Do not temp the gods. And if you get all fancy and order both, then you are sure to find a cracked braze when you look again.

    jim
    Cross Check Nexus7, IRO Mark V, Trek 620 Nexus7, Karate Monkey half fat, IRO Model 19 fixed, Amp Research B3, Surly 1x1 half fat fixed, and more...
    --------------------------
    SB forever

  10. #10
    Senior Member
    Join Date
    Mar 2009
    Posts
    305
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yeah...y'all are right. The peer pressure convinces me to wait...

  11. #11
    Perineal Pressurized dobber's Avatar
    Join Date
    Oct 2003
    Location
    In Ebritated
    Posts
    6,556
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jgedwa View Post
    Oh, I would bet good money on JIS.

    jim
    Loser buys coffee
    This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •