Busch + Müller Cycle Star 903/7: Wide-Angle Vision for Safer Rides
The Busch+Müller Cycle Star 903/7 is a premium bar-end mirror designed to dramatically improve your rear visibility on the road. Thanks to its strongly curved 80 mm glass, the mirror delivers a 75% larger field of view compared to standard mirrors, while the shatterproof coating adds an extra layer of safety. The elegant plastic housing is highly adjustable and folds away space-savingly, snapping right back into your previously chosen position without the need to readjust. Mounted securely with a sturdy aluminum bar-end clamp, it fits handlebars with a diameter of 17.2 to 20 mm. Best for cyclists and speed-pedelec riders who want maximum rearward awareness combined with a clean, reliable mounting solution.
Key Features
- 80 mm curved glass offers a 75% wider field of view than conventional mirrors
- Foldable design returns to your preset angle automatically — no re-adjusting needed
- Shatterproof glass coating for added safety on every ride
- Extremely adjustable, elegantly shaped plastic housing
- Stable aluminum bar-end mount for a secure, rattle-free fit
- Approved in Switzerland for use on speed-pedelecs
Specifications
- Mirror glass diameter: 80 mm
- Field of view increase: 75% larger
- Mounting type: Aluminum bar-end mount
- Compatible handlebar diameter: 17.2 to 20 mm
- Handlebar compatibility: Straight handlebars or bends up to 30 degrees
- Glass protection: Shatterproof coating
- Housing material: Plastic
- Certification: Approved in Switzerland for speed-pedelec use
- EAN: 4006021010307
- Product code: BM9037
Will this mirror fit my handlebar?
The Cycle Star 903/7 uses a bar-end mount that fits handlebars with a diameter between 17.2 and 20 mm. It’s designed exclusively for straight handlebars or handlebars with a bend of no more than 30 degrees, so check your handlebar shape before ordering.
Is the mirror glass safe if it breaks?
Yes, the 80 mm mirror glass features a shatterproof coating, adding an extra layer of protection in case of impact. Combined with its sturdy aluminum mount and durable plastic housing, it’s built to handle everyday riding conditions safely and reliably.
Can I fold the mirror away and keep my settings?
Absolutely. The mirror is designed to be foldable for space-saving storage or transport. When you unfold it again, it snaps straight back into your previously chosen position, so there’s no need to readjust the angle every time.

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