SRAM Braze-On Adapter Clamp
Braze-On Adapter Clamp
SRAM

SRAM Braze-On Adapter Clamp

$40.00
In Stock

SRAM braze-on adapter clamp provides wide 47.5mm spacing for SRAM road front derailleurs. Available in 34.9mm and 31.8mm sizes; chain spotter sold separately.

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Available Options

Option Price Availability
SRAM, Braze-On Adaptor, Wide Spacing, 47.5mm Chainline, 34.9mm, 11.7618.000.002 $40.00 In Stock
SRAM, Braze-On Adaptor, Wide Spacing, 47.5mm Chainline, 31.8mm, 11.7618.000.003 $40.00 In Stock

Product Details

Overview & Technology

SRAM's Braze-On Adapter Clamp converts braze-on mounting surfaces to a clamp-style fit while preserving the intended 47.5mm chainline for modern road drivetrains. The adapter is designed specifically for SRAM road braze-on front derailleurs and carries the model ID FD-SPP-A0; it's precision-made to ensure secure, repeatable positioning of your front mech. The clamp is engineered from a light, durable alloy with a corrosion-resistant finish and a low-profile shape that keeps chain clearance and frame aesthetics intact. The adapter provides the interface for SRAM's chain spotter stop, though the spotter itself is not included and is sold separately or bundled with some front derailleurs.

Key Features & Benefits

Wide 47.5mm spacing: Designed to align perfectly with drivetrain geometry on bikes using a 47.5mm chainline, reducing chain rub and improving shifting across the cassette. The wide spacing is specifically tuned for modern road groupsets and compact cranksets. Purpose-built compatibility: Fits all SRAM road braze-on front derailleurs and includes the chain-spotter stop interface so you can add the optional chain spotter for extra chain retention on rough roads or during maintenance. Lightweight alloy construction balances stiffness with minimal added weight.

Fit, Sizes & Compatibility

The adapter is available in two clamp diameters to match seat tube and head tube braze-on bosses: 34.9mm (part 11.7618.000.002) and 31.8mm (part 11.7618.000.003). Choose the clamp size that matches your frame's braze-on tube diameter. The clamp's misc spec lists 34.9mm for the 11.7618.000.002 variant. It is compatible with all SRAM road braze-on front derailleurs; it is not a universal solution for non-SRAM derailleurs or frames with proprietary mounting hardware. Note that the chain spotter is sold separately—if you want chain retention for single-ring setups or rough-road stability, add the SRAM chain spotter to your cart.

Who This Is For

This adapter is ideal for road cyclists upgrading or repairing their SRAM front derailleur setup, or anyone converting a braze-on mounting to a clamp configuration while maintaining the correct 47.5mm chainline. It’s a practical part for mechanics, bike shops, and home mechanics who need a dependable, OEM-compatible clamp. If you run SRAM road groupsets and want OEM alignment, or you need the chain spotter interface for better chain control on rough rides and training, this small part solves a precise fitment problem without compromising shifting performance.

Key Features

  • ✓ Wide spacing calibrated for a 47.5mm chainline
  • ✓ Fits all SRAM road braze-on front derailleurs
  • ✓ Available in 34.9mm and 31.8mm clamp diameters
  • ✓ Light alloy construction with corrosion-resistant finish
  • ✓ Low-profile design preserves frame clearance and looks
  • ✓ Includes interface for SRAM chain spotter (sold separately)
  • ✓ SRAM Model ID FD-SPP-A0 ensures OEM fit and finish

Specifications

Misc 34.9mm

Product Identifiers

Vendor Item # 11.7618.000.002
UPC 710845739590

Frequently Asked Questions

Does the adapter include the chain spotter?

No. The adapter clamp provides the chain-spotter stop interface but the chain spotter itself is not included. Some SRAM front derailleurs ship with a spotter; otherwise the spotter is sold separately.

Which clamp diameter should I choose for my bike?

Measure the outer diameter of the braze-on tube or boss on your frame. Choose 34.9mm (part 11.7618.000.002) or 31.8mm (part 11.7618.000.003) to match. If unsure, consult your frame specs or a local mechanic to avoid fitment issues.

Will this work with non-SRAM front derailleurs?

This adapter is designed for SRAM road braze-on front derailleurs and guarantees correct alignment with SRAM mounting geometry. Non-SRAM derailleurs may not align correctly; compatibility is not guaranteed.

What material is the adapter made from?

The clamp is manufactured from a lightweight alloy with a durable, corrosion-resistant finish. That construction balances stiffness for accurate shifting with minimal added weight.

How hard should I torque the clamp bolts during installation?

Torque specs vary by frame and clamp hardware. Tighten bolts gradually and use manufacturer torque values when available—typically low torque is sufficient to avoid crushing thin-walled tubes. If in doubt, retighten to feel and check alignment before final torque; a bike shop can confirm proper settings.

Will this affect my chainline?

The adapter is made to preserve a 47.5mm chainline; when combined with compatible SRAM cranksets and derailleurs it maintains intended drivetrain geometry and helps ensure crisp shifting.

Buying Guide

When selecting a braze-on adapter clamp, first confirm your frame has a braze-on mount and measure the outer tube diameter so you pick the correct clamp size (34.9mm or 31.8mm). Decide whether you need the chain spotter for extra retention — the adapter provides the mounting stop, but the spotter is sold separately. Choose an OEM-compatible adapter like SRAM's FD-SPP-A0 if you run SRAM road components to ensure correct chainline and shifting performance. If you're unsure about fitment or torque specs, have a bike shop install the clamp to protect thin-walled tubing and preserve drivetrain alignment.

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