Diamondback Insight STI-8 Bike

Priced: $649.00
Diamondback Insight STI-8 Bike
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Color: Black
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Diamondback Insight STI-8 Bike -

The Diamondback Insight STI-8 Bike offers a comfortable, convenient and efficient platform, all with an internally geared 8-speed hub, making it great for everyday riding, commuting and more.

All bicycles sold at REI include a free warranty tune-up. New bikes go through a normal break-in period, after which readjustment is important for longevity and performance. Bring your new bike in to your local REI for its free tune-up within 20 hours of use or 6 months from purchase, whichever comes first. Contact your nearest REI bike shop to schedule this important service.



  • Diamondback Performance Hybrid seat features gel padding for extended comfort in the saddle


  • Frame eyelets accept fenders or a rear rack for added utility (not included)
  • Sturdy and efficient butted aluminum frame provides a comfortable upright ride, reducing body strains and enhancing visibility


  • Speedy 700c wheels are outfitted with puncture-resistant Kenda Kwik Trax tires for low rolling resistance and comfortable handling

Traction and Grip:

  • Shimano Nexus internally geared rear hub provides 8 smooth-shifting gears to comfortably cruise cities and paths; twist-grip shifter changes gears with a flick of a wrist


  • Internally geared hubs are relatively maintenance-free compared to derailleur-and-cassette systems
  • Specs on the Diamondback Insight STI-8 hybrid bike are subject to change
  • Linear-pull brakes offer easy speed management
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Activity:Bike commuting & touring
Bike frame material:Aluminum
Bike style:Hybrid bike
Bike suspension:No suspension
Bike weight:How we measure bike weight
Bottom bracket:Sealed cartridge
Brake levers:Tektro RS
Brake type:Rim brake
Brakes:Alloy linear
Crankset:Alloy w/ chainguard, 38t
Fork:Alloy straight blade
Frame:6061 aluminum
Front hub:Alloy, 32h
Handlebar:DB alloy 31.8mm
Handlebar shape:Riser bar
Headset:Cane creek
Number of gears:8 gear(s)
Pedals:Wellgo Alloy platform
Rear cogs:Shimano, 18t
Rear hub:Shimano Nexus, 32h
Rims:Equation R23
Saddle:DB Performance Hybrid
Seat post:DB Alloy Micro Adjust
Shifters:Shimano SL8S-20
Stem:DB 3D forged
Tires:Kenda Kwick Trax with puncture-resistance, 700 x 32
Wheel size:700c

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