Blackburn SPX-1 Ultimate Seatpost Rack

Priced: $40.00 Rated:   - 4 stars out of 5 by 1 review.
Blackburn SPX-1 Ultimate Seatpost Rack
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Color: Black
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Blackburn SPX-1 Ultimate Seatpost Rack -

A great option if your bike frame doesn't have rack mounts, the Blackburn SPX-1 Ultimate Seatpost rack clamps to your seatpost and can support up to 21 lbs. of your gear.



  • Constructed out of 6061 aluminum to provide robust performance


  • 21 lbs. (9.5 kg) carrying capacity
  • Rear-facing end of rack features a reflector end plug; flasher clip is included if you choose to mount a rear flashing light (light not included)
  • 4-bolt clamp secures around your seatpost
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Review RatingNumber of Reviews
Fits wheel size:Unavailable
Rack mount position:Rear mount
Rack mount type:Seat post mount
Weight:820 grams
Weight capacity (lbs):21 pounds

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Blackburn SPX-1 Ultimate Seatpost Rack Review:


Very Ridgid

The only negative is inherent to this type of rack: the weight limit and for recreational riding that is not a problem. It will carry all the layers and trail food you want to take, but just don't plan on going shopping with it.
lowreinumber at REI on 04/04/2013