Chain retention and bash protection for mountain bikes, designed to reduce chain drops on rough trails. Riders gain confidence on technical climbs and descents with the BESNIN Chain Guide, compatible with 1x drivetrains and one-piece sprockets. Will it fit your frame and riding style?
⚡ At a Glance
- • Retention Performance: Prevents chain derailment for 1x drivetrains and one-piece sprockets
- • Best for: Mountain bikers using single-chainring setups seeking reliable chain retention
- • Not ideal for: E-bike owners, as the guide is explicitly not suitable for lithium-battery bikes
Machined 7075 aluminium plus ABS guide, weighing 52g. Fits tube diameters 31.8 to 35mm with included spacer and is made for one-piece sprockets on 1x setups.
Secure chain retention – thanks to 7075 aluminium CNC and ABS guide
7075 aluminium CNC construction provides a stiff, lightweight mounting structure while the ABS guide absorbs shock and keeps the chain aligned. The combined materials resist corrosion and handle repeated impacts on off-road terrain.
Reliable retention reduces the chance of chain drops and extends chainring life, especially on rough trails and when using oval chainrings.
Simple fit and adjustment – with included spacer for 31.8–35mm tubes
Compatibility is achieved through a clamping range for bicycle tube diameters 31.8 to 35mm, and an additional spacer is supplied in the accessory pack for fine adjustment. Installation requires basic tools and the package includes the spacer shown in the second image or video.
Most frames with single-ring setups can be fitted quickly and adjusted on the trail, cutting installation time and reducing the need for workshop visits.
Low weight, durable construction – thanks to 52g 7075 alloy build
Total weight is 52g, achieved by using high-strength 7075 aluminium for the body and ABS where impact resilience is needed. The materials are described as lightweight, durable and anti-rust.
Adds minimal mass to the bike while standing up to off-road use, making it suitable for riders who care about performance without bulk.
✨ The 4 Key Reasons for BESNIN Chain Guide
- 7075 Aluminium CNC Body — High strength with minimal added weight for better trail handling
- Included Spacer and Accessories — Easier set-up across a range of clamp diameters
- Designed for 1x Drivetrains — Optimised for single-chainring reliability on modern mountain bikes
- Lightweight at 52g — Keeps total bike weight low while adding necessary protection
📋 Technical Details at a Glance
- Category: Mountain bike chain guide
- Material: 7075 aluminium CNC + ABS
- Compatibility: Only for bikes with 1x drive systems, one-piece sprockets
- Clamp diameter range: 31.8–35mm
- Weight: 52g
❓ Frequently Asked Questions
Q: Is it compatible with my bike's drivetrain?
A: Compatibility is limited to 1x drive systems and one-piece sprockets, so only single-chainring setups are supported. The clamp fits tube diameters 31.8 to 35mm and a spacer is provided for adjustment.
Q: What materials is the guide made from?
A: Constructed from 7075 aluminium CNC with ABS components, offering a combination of lightness, rigidity and impact resistance; total weight is 52g.
Q: Is it suitable for e-bikes?
A: Not suitable for bicycles with lithium batteries, the guide is explicitly not for e-bike use.
🏆 Our Verdict
The BESNIN Chain Guide suits mountain bikers who use single-chainring drivetrains and want dependable chain retention on rough terrain. A 7075 aluminium CNC body with an ABS guide keeps the chain aligned while staying very light. Long-term value comes from sturdy materials and straightforward maintenance, giving reliable performance over many rides.
