---
product_id: 65684652
title: "Wolf Tooth Components 25mm long B-Screw for adapting old deraileurs when using a by Wolf Tooth Components"
brand: "wolf tooth"
price: "€ 31.02"
currency: EUR
in_stock: true
category: "Wolf Tooth"
url: https://www.desertcart.at/products/65684652-wolf-tooth-components-25mm-long-b-screw-for-adapting-old
store_origin: AT
region: Austria
---

# 25mm precision length Premium 18-8 stainless steel Optimized for Shimano MTB derailleurs Wolf Tooth Components 25mm long B-Screw for adapting old deraileurs when using a by Wolf Tooth Components

**Brand:** wolf tooth
**Price:** € 31.02
**Availability:** ✅ In Stock

## Summary

> 🔧 Small Screw, Massive Shift: Upgrade Your Ride’s Precision!

## Quick Answers

- **What is this?** Wolf Tooth Components 25mm long B-Screw for adapting old deraileurs when using a by Wolf Tooth Components by wolf tooth
- **How much does it cost?** € 31.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/65684652-wolf-tooth-components-25mm-long-b-screw-for-adapting-old)

## Best For

- wolf tooth enthusiasts

## Why This Product

- Trusted wolf tooth brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Yet Strong:** At just 5 grams, it delivers maximum strength (550 MPa shear) without adding bulk to your setup.
- • **Seamless Derailleur Adjustment:** Ensures optimal B-limit screw replacement for cleaner shifts and superior chain management.
- • **Precision Fit for Wide-Range Cogs:** Specifically engineered to perfectly adapt Shimano derailleurs when paired with Wolf Tooth GC 40 & GC 42 large cogs.
- • **Durable Stainless Steel Construction:** Crafted from high-grade 18-8 stainless steel for corrosion resistance and long-lasting performance on every ride.
- • **Easy Installation with Phillips Head:** Designed for quick, hassle-free upgrades to keep you rolling faster and smoother.

## Overview

The Wolf Tooth Components 25mm B-Screw is a premium stainless steel replacement screw designed to optimize Shimano mountain bike derailleurs when using Wolf Tooth’s GC 40 or GC 42 large cogs. Engineered for precise derailleur alignment, it enhances shifting performance and chain management, making it an essential upgrade for serious cyclists seeking flawless drivetrain efficiency.

## Description

Wolf Tooth Components 25mm long B-Screw for adapting old deraileurs when using a by Wolf Tooth Components | bike-drivetrain-components : desertcart.co.uk: Sports & Outdoors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LMY7BA0 |
| Best Sellers Rank | 70,358 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 210 in Screws (Sports & Outdoors) 228 in Bike Derailleurs & Parts |
| Brand Name | Wolf Tooth |
| Colour | Silver |
| Compatible Groove Diameter | 4 Millimeters |
| Customer Reviews | 4.5 out of 5 stars 236 Reviews |
| Drive System | Bicycle Derailleur Drive System |
| Exterior Finish | Stainless Steel |
| Exterior finish | Stainless Steel |
| Fastener Size | M4 x 25mm |
| Fastener Type | Screw (M4 thread size) |
| Finish Types | Uncoated |
| Global Trade Identification Number | 00812719020152 |
| Grade Rating | Premium |
| Head Type | Phillips |
| Head style | Phillips |
| Included Components | Miscellaneous Rear Derailleur Part |
| Item Diameter | 4 Millimetres |
| Item Dimensions | 10.2 x 5.1 x 0.6 centimetres |
| Item Weight | 5 g |
| Item dimensions L x W x H | 10.2 x 5.1 x 0.6 centimetres |
| Manufacturer Part Number | BSCREW25 |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Maximum Shear Strength | 550 MPa |
| Metal | Stainless Steel |
| Model Number | BSCREW25 |
| Number Of Items | 1 |
| Number of Pieces | 1 |
| Point style | cylindrical |
| Screw Head Style | Phillips |
| Screw Point Style | cylindrical |
| Set Name | Single Screw Set (M4 x 25mm) |
| Set Screw Thread Type | M4 x 0.7mm |
| Size | M4 x 25mm |
| Thread Class | standard |
| Thread Coverage | Fully Threaded |
| Thread Size | 4mm |
| Thread Style | M4 |
| Thread Type | Metric |
| Thread size | 4mm |
| UPC | 812719020152 |
| Unit Count | 1.0 count |

## Product Details

- **Exterior finish:** Stainless Steel
- **Head style:** Phillips
- **Item dimensions L x W x H:** 10.2 x 5.1 x 0.6 centimetres
- **Material:** Stainless Steel
- **Thread size:** 4mm

## Images

![Wolf Tooth Components 25mm long B-Screw for adapting old deraileurs when using a by Wolf Tooth Components - Image 1](https://m.media-amazon.com/images/I/61DD++TmylL.jpg)

## Frequently Bought Together

- Wolf Tooth Components 25mm B-Screw
- Wolf Tooth Components Roadlink
- Wolf Tooth GoatLink for Shimano

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**Shop now:** [https://www.desertcart.at/products/65684652-wolf-tooth-components-25mm-long-b-screw-for-adapting-old](https://www.desertcart.at/products/65684652-wolf-tooth-components-25mm-long-b-screw-for-adapting-old)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-08-31*