Dimensions/standard for top-tube bosses for "fuel tanks"- Mtbr.com
Results 1 to 3 of 3
  1. #1
    mtbr member
    Join Date
    May 2005

    Dimensions/standard for top-tube bosses for "fuel tanks"

    Is there a "standard" for the spacing of bosses for top-tube mounted bags, such as those bosses found on Salsa's adventure bikes? I realize the spacing between the bosses is 2.5"; I'm trying to find the distance of the front boss from the edge of the head-tube.

    I haven't found a schematic that shows this distance (yet...still searching), and the only ball-park dimension I've come up with is from Oveja Negra's drawing of their bolt-on top-tube pack, which appears to fit snug against the back of the stem: https://www.ovejanegrabikepacking.co...k-pack-bolt-on

    Thanks in advance!

  2. #2
    mtbr member
    Join Date
    May 2005
    Ughh...nevermind. Perhaps if I could read.
    Oveja Negra's page (linked above), states that it will fit a "...frame that has x2 braze-ons/bolt mounts located at 3 3/8" from outside of headset spacers 2 1/2" apart. So, I will use that dimension, and maybe this post will serve useful for some like-minded idiot who is also looking for this info.

  3. #3
    mtbr member
    Join Date
    Dec 2012
    It's a difficult standard to find and it seems there are at least two of them. 3 3/8" is one and the other is further away. I ended up going with 90mm from the head tube.

Similar Threads

  1. Trek Top Fuel 9 vs Top Fuel 9.8
    By thisisbenji in forum Bike and Frame discussion
    Replies: 3
    Last Post: 11-17-2016, 08:12 AM
  2. Top Fuel 9 vs. Top Fuel 9.8
    By Spencerespencer in forum 29er Bikes
    Replies: 15
    Last Post: 03-28-2016, 09:30 PM
  3. Replies: 25
    Last Post: 06-30-2012, 02:28 PM
  4. Replies: 12
    Last Post: 06-02-2007, 11:01 AM
  5. Replies: 1
    Last Post: 11-03-2005, 05:14 PM

Members who have read this thread: 54

Posting Permissions

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




© Copyright 2019 VerticalScope Inc. All rights reserved.