What Is It?
The Cateye BM-45 Rearview Mirror is a compact, lightweight bar-end bicycle mirror designed to improve rearward visibility for road, gravel, mountain, hybrid, and commuter bikes. Its minimalist design fits neatly into the end of both drop and flat handlebars, providing a clear view of traffic behind without significantly increasing the bike's width.
Constructed from aluminium and high-quality glass, the BM-45 offers a nearly distortion-free image and features a fully adjustable ball joint for easy positioning. Weighing just 35 grams, it combines excellent visibility with a sleek, unobtrusive appearance.
Key Benefits
-
Compact Bar-End Design: Minimal projection maintains a clean cockpit while improving rear visibility.
-
Wide-Angle Glass Mirror: 45 mm convex glass provides a broad, clear field of view with minimal distortion.
-
Fits Drop & Flat Bars: Compatible with a wide range of bicycles.
-
Lightweight Construction: Weighs only 35 g, adding virtually no noticeable weight.
-
Durable Materials: Aluminium body and real glass mirror offer excellent durability and optical clarity.
-
Adjustable Viewing Angle: Ball-and-socket joint allows quick, precise adjustment.
-
Simple Installation: Expanding bar-end mount installs with the included 3 mm Allen key.
Specifications
| Specification |
Details |
| Product |
Cateye BM-45 Rearview Mirror |
| Model |
BM-45 |
| Mirror Type |
Bar-End Mirror |
| Mirror Diameter |
45 mm |
| Material |
Aluminium Body, Glass Mirror |
| Weight |
35 g |
| Handlebar Compatibility |
Drop Bars & Flat Bars |
| Handlebar Inner Diameter |
Ø16 mm and larger |
| Grip Outer Diameter |
Ø19.1–23.8 mm |
| Adjustment |
Ball-and-Socket Joint |
| Installation Tool |
3 mm Allen Key (Included) |
| Colour |
Black |
Compatible Components
The Cateye BM-45 is compatible with:
- Road bikes with drop handlebars
- Mountain bikes with flat handlebars
- Gravel bikes
- Hybrid bikes
- Touring bikes
- Commuter bikes
- Handlebars with an inner diameter of at least Ø16 mm and grip outer diameter of Ø19.1–23.8 mm.
Who Is This Best Suited For?
The Cateye BM-45 Rearview Mirror is ideal for:
- Road cyclists
- Gravel riders
- Commuters
- Touring cyclists
- Bikepacking riders
- Fitness cyclists
- Urban riders seeking increased awareness of traffic
- Cyclists who want a lightweight, discreet rear-view mirror
The BM-45 is widely regarded as one of the best compact bar-end mirrors thanks to its excellent optical clarity, secure mounting, and unobtrusive design. Independent reviews and rider feedback consistently praise its stability, ease of adjustment, and effectiveness on both drop-bar and flat-bar bikes.
