Frame Repairs - Derailleur hangers & dropouts.

  1. Usually, when a non-replaceable derailleur hanger like this is damaged or broken it means the frame is destined for the tip. Not any more.
    Usually, when a non-replaceable derailleur hanger like this is damaged or broken it means the frame is destined for the tip. Not any more.
  2. This carbon fibre Cervello (with a non-replaceable hanger) was turned into a very expensive paper weight when the hanger broke. We converted the dropout to accept the custom
    This carbon fibre Cervello (with a non-replaceable hanger) was turned into a very expensive paper weight when the hanger broke. We converted the dropout to accept the custom "replaceable" hanger we made for it and the bike was back on the road and saved from the tip
  3. This carbon fibre Trek was modified to use a generic (and readily available) hanger. This sort of repair/modification means that life is certainly going to be easier if this sort of damage happens again.
    This carbon fibre Trek was modified to use a generic (and readily available) hanger. This sort of repair/modification means that life is certainly going to be easier if this sort of damage happens again.
  4. Unfortunately though, when a derailleur hanger is broken it sometimes breaks the part of the frame its bolted to as well. There's very few dropouts we can't fix though.
    Unfortunately though, when a derailleur hanger is broken it sometimes breaks the part of the frame its bolted to as well. There's very few dropouts we can't fix though.
  5. All these repairs are available for Aluminium, Titanium, Carbon Fibre, CrMo & steel frames.
    All these repairs are available for Aluminium, Titanium, Carbon Fibre, CrMo & steel frames.
  6. We repair hangers and dropouts on both hardtail and full suspension frames.
    We repair hangers and dropouts on both hardtail and full suspension frames.
  7. Sometimes, because of its design, the rear end of a frame just can't have a welded repair done on it and there simply isn't enough material at the dropout to convert it to use a replaceable hanger. In cases like this we hand make a CrMo fitting that permanently attaches to the frame and holds the replaceable hanger in place.
    Sometimes, because of its design, the rear end of a frame just can't have a welded repair done on it and there simply isn't enough material at the dropout to convert it to use a replaceable hanger. In cases like this we hand make a CrMo fitting that permanently attaches to the frame and holds the replaceable hanger in place.
  8. One of THE most common places for a hardtail frame (regardless of frame material) to break is in the dropout area of the right hand chain stay. It happens at the front of the dropout and through the chainstay as it has done on this Eddy Merckx Ti frame.
    One of THE most common places for a hardtail frame (regardless of frame material) to break is in the dropout area of the right hand chain stay. It happens at the front of the dropout and through the chainstay as it has done on this Eddy Merckx Ti frame.
  9. It can happen through the dropout itself... just behind the weld joining it to the stay... as has happened here on this Cannondale.
    It can happen through the dropout itself... just behind the weld joining it to the stay... as has happened here on this Cannondale.
  10. Or it can go right through the middle of the dropout itself.
    Or it can go right through the middle of the dropout itself.
  11. Breaks and cracks like these only occasionally happen on the left (non-drive) side, but that doesn't mean they don't. This Titanium soft tail is pretty typical of how the rotational forces applied to a frame by a disc brake can totally ruin a person's day. It's lucky we're around to repair things like this.
    Breaks and cracks like these only occasionally happen on the left (non-drive) side, but that doesn't mean they don't. This Titanium soft tail is pretty typical of how the rotational forces applied to a frame by a disc brake can totally ruin a person's day. It's lucky we're around to repair things like this.
  12. Have a look at the small gusset that's been added between the seat and chain stays on this Avanti. This is exactly the sort of gusseting we do on nearly every repair like this. Please don't ask us to just
    Have a look at the small gusset that's been added between the seat and chain stays on this Avanti. This is exactly the sort of gusseting we do on nearly every repair like this. Please don't ask us to just "weld up" your frame... it wont last and we wont do it. And if you're worried about weight, keep in mind that a gusset like this is adding no more than few grams to your frame and we certainly don't stick bit's of metal onto a frame just for laughs... we do it because it's needed.
  13. This frame uses a sliding dropout & disc mount, but when the frame broke it was obvious to us that a
    This frame uses a sliding dropout & disc mount, but when the frame broke it was obvious to us that a "welded" repair was impossible. We made this CrMo plate to hold the frame together and give the sliding dropout something solid to bolt up to rather than crushing the original aluminium frame material (as it did whenever it was tightened). The last photo shows our repair, bolted into place on the frame and the sliding dropout back in position.