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Address: Barwa Village, Alwakra Road,
Building No.9, Shop No. 1.3
Email: GYB@USA.COM
Phone: (974) 33207733

REAR DERAILLEUR, RD-M3100, ALIVIO,SGS 9-SPEED, TOP NORMAL

QR 249.00

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Delivery & Return

Estimate delivery time: 1-5 days (Qatar), 12-26 days (International).

Return within 30 days of purchase. Duties & taxes are non-refundable.

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Description

PRODUCT SPECIFICATION

Model No

RD-M3100-SGS

Series

SHIMANO ALIVIO

Rear speeds

Compatible chain

HG 9-speed

RD construction

SHIMANO SHADOW RD

✔

Mount

Direct attachment (conventional)

✔

Cable adjuster

✔

Max. front difference

22T

Total capacity

45T

Low sprocket

Max.

36T

Min.

32T

Top sprocket

Max.

12T

Min.

11T

Fluoric coated link bushings

Pulley

Teeth

11T

Sunken type pulley screw

✔

B-axle

Hollow axle

✔

Color

Series color

Review

4.8

(168 Ratings)

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Return Policies

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Return Policy 5.

Bike Size Guide

Correct size = more comfort, better control, and safer riding. Measure Height + Inseam, then use the charts below.

1) Height 2) Inseam Road + MTB

Step 1

Measure your height

📏

Stand straight against a wall and measure your height (cm).

If you are between two sizes, the inseam measurement usually decides.

Step 2

Measure inseam (inside leg)

📚

Barefoot: put a book between your legs (like a saddle) and measure from the top of the book to the floor.

Road Bike

Road bikes usually use frame sizes in centimeters (45 / 52 / 54 ...)

Frame

Frame Size	Rider Height (cm)
XS	155 – 163
S	163 – 168
M	168 – 174
L	174 – 180
XL	180 – 185
XXL	185 – 191

Between two sizes? Smaller = sportier · Bigger = more relaxed

Mountain Bike (MTB)

MTB sizes are usually XS / S / M / L / XL.

XS → XXL

Size	Rider Height (cm)
XS	148 – 158
S	159 – 168
M	169 – 178
L	179 – 185
XL	186 – 193
XXL	194+

Between two sizes? Smaller = easier handling · Bigger = more stable

Quick Fit Check (Important)

This quick check helps confirm the frame is not too tall.

Standover

Stand over the bike (feet flat). You should have a small safe gap above the top tube.

Tip: For best comfort, we can adjust saddle + handlebar for you in-store 👌

سريع وواضح

English ↑

دليل اختيار مقاس الدراجة

المقاس الصح = راحة أكثر + تحكم أحسن + أمان. قِس الطول و Inseam وبعدين شوف الجداول.

١) الطول ٢) طول الرجل من داخل روود + ماونتن

الخطوة ١

قِس طولك

📏

واقف مستقيم عند الجدار وقِس طولك بالسنتيمتر.

الخطوة ٢

قِس Inseam (طول الرجل من داخل)

📚

قف حافي. حط كتاب بين رجولك مثل السرج، وقِس من أعلى الكتاب لين الأرض.

إذا أنت بين مقاسين، الـ Inseam غالباً يحدد المقاس الصح.

دراجة Road (مقاس فريم بالسنتيمتر)

غالباً: 49 / 52 / 54 / 56 ...

مقاس الفريم	طول الراكب (cm)
XS	156 – 163
S	163 – 168
M	168 – 174
L	174 – 180
XL	180 – 185
XXL	185 – 191

إذا أنت بين مقاسين: الأصغر = رياضي أكثر · الأكبر = راحة أكثر

دراجة Mountain (XS - XXL)

غالباً: XS / S / M / L / XL

XS→XXL

المقاس	طول الراكب (cm)
XS	148 – 158
S	159 – 168
M	169 – 178
L	179 – 185
XL	186 – 193
XXL	194+

إذا أنت بين مقاسين: الأصغر = تحكم أسهل · الأكبر = ثبات أكثر

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