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5.0 out of 5 5.0 (2 reviews)

Firstgear Onyx Expandable Motorcycle Tank Bag

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This expandable tank bag is made of heavy-duty RoadTex 1000 denier nylon with PVC coating and UV protection. The base has a non-slip material and heavy-duty magnets to keep you tank bag where you put it. The reinforced sidewall helps the bag hold its shape when empty.

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Firstgear Onyx Expandable Motorcycle Tank Bag

(based on 2 reviews)

Reviewed by 2 customers

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(1 of 1 customers found this review helpful)


Nice bags honey.

By Gig3

from Rockford, IL

See all my reviews

Comments about Firstgear Onyx Expandable Motorcycle Tank Bag:

This is a great tank bag for everyday use and traveling. Not too small or too big. Map window. Small side pockets for camera, glasses, phone, and in my case, cigarettes. Makes them easily accessible without having to dig through your bag on the 5-minute scenic rest spot. The expansion is a little to much. You tend to rest your chin on it while riding, but nice if you have your bag full and want to stop and get that sandwich and soda on the way home. Magnets hold great, not real heavy and it has built in backpack straps.


Firstgear Onyx Expandable Tank Bag

By Pete

from Santa Fe, New Mexico

See all my reviews


  • Durable
  • Good Capacity
  • Lightweight


    Best Uses

    • Long Rides
    • Off-Road
    • Street Bikes

    Comments about Firstgear Onyx Expandable Motorcycle Tank Bag:

    This bag is nice and the fact that it also expands is a plus not that I would use it all the time but handy just in case.I own a Triumph 1050 Tiger and the bag fits just right does not get in the way of your steering at all lots of room, had the bike on I25 in New Mexico 90 MPH with a wicked cross wind And the magnets held tight, each side only has three ceramic magnets but they are big and hold fast, nice rain cover as well.Now for the small missing Cons, Zipper is great untill you get to thee corners then you have to pull up on the lid they have weather protecting lips so I would like to know how long these lips hold up to evvery day use.Another little Peave Would like to see extra side zippper bags sewn into this bag to hold extra little things, maybe a net bags on the magnet pad sides to hold change Ect, use the space? I was going to get the Tour Master great bag as well but didn't fit the Tiger as well.All in All I like this bag [...] Thank you.

    • Motorsports:
    • Motorcycle Enthusiast

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    Specifications and Options

    Brand Firstgear
    Tank Bag Base Magnetic Mount
    Design Black
    Luggage Dimension 10"W x 14"L x 8"H
    Luggage Dimensions - Expanded 10"W x 14"L x 11"H
    Luggage Capacity 1120 cu. in.