Birzman Navigator SB Top Tube Bag -
Birzman Navigator SB Top Tube Bag -
Birzman Navigator SB Top Tube Bag -
Birzman Navigator SB Top Tube Bag -
Birzman Navigator SB Top Tube Bag -

Birzman Navigator SB Top Tube Bag


Regular price Rs. 2,695.00 Sale priceRs. 2,295.00 Save 15%
Tax included. Shipping calculated at checkout.

Top tube bag with touch screen window (L19 x W9 cm)

Central to the Navigator series is a transparent touch screen, which allows viewing and operation of the smartphone. The Birzman Navigator SB is latest upgrade to already popular sibling Zyklop Navigator III. However the Navigator SB is a little bigger to house the larger smarter phones. This works really well when you are using your mobile phone as a GPS unit as there is an upper transparent cover pocket which still allows touch screen ability when the phone is securely in the pocket. The Navigator SB is made from a water resistant material to fend off the rain and dust but is not fully waterproof. The bag features a large zipped up storage space underneath to fit tyre levers, puncture repair kits, mini tool and a spare tube as well as mobile power banks and a port for wired charging. The bag is pretty versatile in what stems and handlebars you can fit to, with the Velcro straps you are able to attach the bag to all sized handlebars and stems.


  • Touch-compatible window for smart phone screens.
  • Splash proof and water repellent material guards valuables against moisture.
  • Material-2100PU/45C Tarpaulin(water repellent)
  • Compatible with wired and wireless charging
  • Features an internal pocket for mobile banks and a port for wired charging
  • Adjustible and trimmable self-engaging velcro straps, for top tubes dia 20-50mm

Customer Reviews

Based on 4 reviews
Chandrasekhar Metta
Could have been designed better

The bag can store a large number of items you need to carry on a long ride/BRMs. It however doesn’t stay firmly in one place and rolls to the side. It rubs against one knee or the other. Layering the straps with a anti slip material might have helped.

Perfect for oversized phones

Fits my Asus ROG II which is a rather large phone and it still has room, so it can easily accommodate a slightly bigger device! Touch works perfectly, fingerprint reader is a bit of a hit and miss, but not that it matters. Build quality is excellent and has room for my phone, a puncture kit, Leatherman multitool, spare tube and some cash. Seems water resistant to an extent but haven't tested it out yet. Fits well on my Giant Talon 1. Very happy with the purchase.

Finally a bag that fits my top tube properly

This bag is designed to sit well on the top tube without being invasive to the steering of my bike. Its phone section enables me to use my hone through the bag. The overall quality is fantastic!

Kiran Kumar N C
Review on the Birzman Navigator SB top.

The delivery of the product was on time with well packed. Kudos to Cyclop for the packaging and on-time delivery of the product.
About the Birzman top tube bag, the build quality of the bag feels so great. The quality of the zipper and the top transparent for holding the mobile is of good quality. The straps fitted properly to the top tube. One thing which I was expecting is there should be one more strap on the bottom to connect to the tube. At the bottom, there is only one strap to tighten the tube.
Overall great product.

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