SRAM Braze-on Front Derailleur Clamp - 31.8mm with ChainSpotter Stop
What does the SRAM 31.8mm Braze-On clamp with ChainSpotter do?
The SRAM Braze-On Front Derailleur Clamp in 31.8mm with ChainSpotter Stop is an adapter that mounts a braze-on style front derailleur on frames with a 31.8mm round seat tube diameter that do not have a factory-welded braze-on tab for direct derailleur attachment. The clamp provides the mounting interface the derailleur needs by clamping to the seat tube and presenting the correct braze-on mounting surface. It is the right spec for older frames, road frames, or any build using a braze-on derailleur on a round tube without a welded tab.
The integrated ChainSpotter Stop tab adds a mounting point for SRAM's chain retention device alongside the derailleur, enabling lightweight chain control without a dedicated chainguide. ChainSpotter is a simple, adjustable chain drop limiter that positions above the chainring to prevent outward chain movement under technical or rough conditions — appropriate where chain drops are intermittent rather than constant. The 31.8mm diameter is standard for many older and road-oriented frames; verify your seat tube diameter before ordering since the 34.9mm version is the correct spec for most modern MTB frames. Compatible with all SRAM braze-on front derailleurs, road and MTB. Installs with a 5mm hex wrench.
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SRAM Braze-on Front Derailleur Clamp - 31.8mm with ChainSpotter Stop
SRAM Braze-on Front Derailleur Clamp - 31.8mm with ChainSpotter Stop
What does the SRAM 31.8mm Braze-On clamp with ChainSpotter do?
The SRAM Braze-On Front Derailleur Clamp in 31.8mm with ChainSpotter Stop is an adapter that mounts a braze-on style front derailleur on frames with a 31.8mm round seat tube diameter that do not have a factory-welded braze-on tab for direct derailleur attachment. The clamp provides the mounting interface the derailleur needs by clamping to the seat tube and presenting the correct braze-on mounting surface. It is the right spec for older frames, road frames, or any build using a braze-on derailleur on a round tube without a welded tab.
The integrated ChainSpotter Stop tab adds a mounting point for SRAM's chain retention device alongside the derailleur, enabling lightweight chain control without a dedicated chainguide. ChainSpotter is a simple, adjustable chain drop limiter that positions above the chainring to prevent outward chain movement under technical or rough conditions — appropriate where chain drops are intermittent rather than constant. The 31.8mm diameter is standard for many older and road-oriented frames; verify your seat tube diameter before ordering since the 34.9mm version is the correct spec for most modern MTB frames. Compatible with all SRAM braze-on front derailleurs, road and MTB. Installs with a 5mm hex wrench.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
What does the SRAM 31.8mm Braze-On clamp with ChainSpotter do?
The SRAM Braze-On Front Derailleur Clamp in 31.8mm with ChainSpotter Stop is an adapter that mounts a braze-on style front derailleur on frames with a 31.8mm round seat tube diameter that do not have a factory-welded braze-on tab for direct derailleur attachment. The clamp provides the mounting interface the derailleur needs by clamping to the seat tube and presenting the correct braze-on mounting surface. It is the right spec for older frames, road frames, or any build using a braze-on derailleur on a round tube without a welded tab.
The integrated ChainSpotter Stop tab adds a mounting point for SRAM's chain retention device alongside the derailleur, enabling lightweight chain control without a dedicated chainguide. ChainSpotter is a simple, adjustable chain drop limiter that positions above the chainring to prevent outward chain movement under technical or rough conditions — appropriate where chain drops are intermittent rather than constant. The 31.8mm diameter is standard for many older and road-oriented frames; verify your seat tube diameter before ordering since the 34.9mm version is the correct spec for most modern MTB frames. Compatible with all SRAM braze-on front derailleurs, road and MTB. Installs with a 5mm hex wrench.
