Bike replacement component designed to protect rear mechs and frame on rough rides, Quwem Bike Rear Derailleur Hanger. Peace of mind for riders tackling rocky singletrack or multi-day tours who want fewer roadside repairs. Does such a hanger suit most modern drivetrains and reduce the risk of costly damage?
⚡ At a Glance
- • Material Strength: Machined from 7075 aircraft-grade aluminium for high strength and reduced weight
- • Best for: Trail riders, bikepackers and touring cyclists who prioritise drivetrain protection
- • Not ideal for: Frames with proprietary, non-standard derailleur mounting systems
7075 aircraft-grade aluminium construction delivers strength with lower weight. Standard M12x1.0 threading and an extended hook maintain chain tension while acting as a sacrificial protection point.
Tough, lightweight construction – with 7075 aircraft-grade aluminium
Machined from 7075 aircraft-grade aluminium alloy, the hanger uses hardened material to resist bending under impact and is significantly lighter than steel alternatives. A black anodised finish adds corrosion resistance against mud, sweat and salts.
High-strength alloy keeps the rear end rigid under load while trimming weight by about 30% versus steel, improving handling and reducing unsprung mass.
Crash protection that saves drivetrain parts – thanks to an engineered sacrificial weak point
Designed as an extender with a deliberately engineered weak point, the hanger absorbs collision energy and is intended to fail before the derailleur or frame mounting points. The extended hook geometry helps localise stresses away from the mech body.
Sacrificial design reduces the likelihood of expensive derailleur or frame damage after a crash, making roadside replacement simpler and cheaper.
Reliable alignment and compatibility – with M12x1.0 threading and extended hook design
Standard M12x1.0 threading matches most modern mountain and road bikes while the longer hook maintains correct chain tension across rough terrain and when carrying loads. Compatibility is specified for SRAM, Shimano and other major drivetrain systems.
Broad fitment and consistent chain tension lead to more reliable shifting on rough trails and loaded touring rides.
✨ The 4 Key Reasons for Quwem Bike Rear Derailleur Hanger
- 7075 aircraft-grade aluminium – Reduces overall weight by around 30% compared with steel hangers
- Engineered sacrificial weak point – Absorbs crash impacts, protecting derailleur and frame from costly repairs
- Standard M12x1.0 threading – Fits most modern mountain and road bike frames for easy replacement
- Black anodised finish – Resists corrosion from mud, sweat and road salts during regular use
📋 Technical Details at a Glance
- Category: Bike replacement part / Derailleur hanger
- Brand: Quwem
- Product ID: B0FC2JFKGB
- Material: 7075 aircraft-grade aluminium alloy
- Threading: M12x1.0 standard thread
❓ Frequently Asked Questions
Q: Will this hanger fit my bike frame?
A: Standard M12x1.0 threading fits most modern mountain and road bikes, though some proprietary systems are excluded. Compatibility is noted with SRAM, Shimano and other major drivetrains.
Q: How does the hanger protect the derailleur and frame?
A: The hanger serves as a sacrificial extender with an engineered weak point that absorbs impacts and breaks before the derailleur or frame mounting, reducing the chance of costly damage. The extended hook also helps maintain chain tension during rough riding.
Q: What is the hanger made from and is it durable?
A: Machined from 7075 aircraft-grade aluminium, the hardened material resists bending under heavy trail use and is roughly 30% lighter than steel alternatives. A black anodised finish helps resist corrosion from mud, sweat and road salts.
🏆 Our Verdict
Ideal for mountain bikers, bikepackers and touring riders who want a straightforward way to reduce repair risk on rough roads. A sacrificial extender machined from 7075 aluminium, with standard M12x1.0 threading and a black anodised finish, combines strength with lighter weight. While cost will vary, fewer expensive drivetrain repairs make such a hanger a sensible long-term investment.
