Clarity STI-8

A comfortable womens bike to enjoy the occasional ride without the hassles of maintaining an overly complicated machine. That’s the goal of The Clarity STI-8. Its Devine Designs Geometry and flat handlebar let you ride more upright, and the 6061-T6 aluminum alloy serves up worry free durability and performance. The custom formed tubing and smooth rolling 700c wheels provide a comfortable ride, and the single chainring, 8-speed internally geared hub drivetrain gives you all the range you’ll need to get around.

Upgrades over Insight 3

  • Shimano 8-speed twist shifters and Nexus internally geared hub
  • Kenda K-Shield puncture resistant tires
  • Shimano 355 Hydraulic Disc Brakes, w/ 160mm Rotors


  • Hand built 6061-T6 aluminum alloy frame and straight blade fork are durable and comfortably compliant
  • Frame and fork eyelets let you mount rack and fenders
  • Shimano Nexus internally geared 8-speed hub is simple and reliable
  • 700c Performance Hybrid wheels
  • Tektro linear pull brakes

Bike Specs

Sizes XS/14"  S/16"  M/18"  L/20" 
Frame Clarity 6061-T6 Butted Aluminum Performance Hybrid w/ Formed / Hooded Top Tube, Integrated Headtube, Vertical Compliance Stays, (VCS), w/ Disc Tabs
Fork Clarity Integrated Aero Alloy Straight Blade w/ Disc Tabs
Rear Shock
Cranks Alloy single chainring w/ alloy chainguard 38t
Bottom Bracket Sealed Cartridge
F. Derailleur N/A
R. Derailleur N/A
Shifter Shimano SL8S-20 light action, 8 spd, Twist Shift
Brake Levers Shimano 355 Hydraulic Disc Brake Levers
Brakes Shimano 355 Hydraulic Disc Brakes, w/ 160mm Rotors
Cassette Shimano 18t Sprocket for Internal Gear Hub
Rims 32h Equation R23 Doublewall
Tires Kenda Kwick Trax w/ puncture resistant K-shield 700x32c
Pedals Wellgo Alloy body / cage, toe clip compatible
Handlebar DB 31.8mm low rise Alloy
Stem DB 3D Forged 7° 31.8mm
Seatpost Alloy Micro Adjust 27.2mm
Seat DB Performance Hybrid w/ Gel
Headset Integrated "Cane Creek" Size Drop-in ACB 1 1/8"
Colors Dark Silver
Chain KMC-Z51
Hubset (F) 32h Alloy QR (R) 32h Shimano Nexus Internal 8-spd with Center Lock Disc
Spokes Black 14g Stainless Steel
Grips Diamondback Dual Density Comfort Grip
Extras Owner’s Manual
Note Specifications Subject to Change
  • Diamondback Bikes Mountain Size XS
  • Diamondback Bikes Mountain Size SM
  • Diamondback Bikes Mountain Size MD
  • Diamondback Bikes Mountain Size LG


Size XS/14" S/16" M/18" L/20"
Seat Tube Length ** 356.0mm 406.0mm 457.0mm 508.0mm
Standover Height 622.0mm 673.0mm 718.0mm 775.0mm
Top Tube Length * 541.0mm 551.0mm 574.0mm 594.0mm
Stack 0.0mm 0.0mm 0.0mm 0.0mm
Reach 0.0mm 0.0mm 0.0mm 0.0mm
Head Tube Length 100.0mm 120.0mm 150.0mm 175.0mm
Head Angle 71.0° 71.0° 71.0° 71.0°
Seat Angle 73.0° 73.0° 73.0° 73.0°
Wheel Base 1032.0mm 1042.0mm 1069.0mm 1089.0mm
Chain Stay Length 450.0mm 450.0mm 450.0mm 450.0mm
Fork Offset 48.0mm 48.0mm 48.0mm 48.0mm
BB Height 272.0mm 272.0mm 272.0mm 272.0mm
BB Drop 0.0mm 0.0mm 0.0mm 0.0mm
Stem Length 90.0mm 90.0mm 90.0mm 90.0mm
Handlebar Width 600.0mm 600.0mm 600.0mm 600.0mm
Crank Length 170.0mm 170.0mm 170.0mm 170.0mm
Seat Post Length 350.0mm 350.0mm 350.0mm 350.0mm
* Measured Horizontally ** Measured from Center

Size Finder

Bike Type


Measurement Units


Based on your input...

Your Bike size is: