NiteRider Sentinel 250 Taillight - Lazer Lane Lights 250 lumens Black MFPN=SA35SS40 If your fat bike has

If your fat bike has a 170/177 rear hub spacing

} Accomodates two bike wheels up to 29

Ski Boot - Outsole

} 250 lumens saddle mounted rear light

Two keys supplied with lock

NiteRider Sentinel 250 Taillight - Lazer Lane Lights 250 lumens Black MFPN=SA35SS40 If your fat bike hasNiteRider Sentinel 250 Taillight. Niterider Sentinel 250 taillight features Lazer Lanes light projected on the ground parallel to the rider to encourage passing cars to give a generous distance when overtaking. 250 Lumen Output (Daylight Visible Flash) Highly Visible Laser Lanes Gives Cyclist Their Own Virtual Lane Group Ride Mode Be seen without distracting fellow cyclists 2 Light Levels 2 Flash Modes plus 3 Laser Lane Modes