Insight STI-8

The Diamondback Insight STI-8 takes the high performance and versatile Insight 3 and turns it up a notch. By adding simplicity in use and maintenance, we’ve bettered our top of the line performance hybrid with a Shimano Nexus internally geared 8-spd hub and single front chain ring. This leaves you with better shifting and an easier to maintain rig. Add in a Shimano SL8S-20 light action, 8 spd, twist shifter and what you’ve got is one stealth and simple machine that packs a punch.

Highlights:

  • Internal 8-speed gearing means smooth shifting and lower maintenance
  • Insight 6061-T6 butted aluminum performance hybrid frame with formed hooded top tube, integrated head tube, and vertical compliance stays
  • Insight integrated Aero Alloy straight blade fork
  • Alloy single chain ring with an alloy chain guard, 38t
  • Shimano SL8S-20 light action 8-speed twist shifters

Bike Specs

Sizes 15" Small  17" Medium  19" Large  21" XLarge  23" XXLarge 
Frame Insight 6061-T6 Butted Aluminum Performance Hybrid w/ Formed / Hooded Top Tube, Integrated Headtube, Vertical Compliance Stays, (VCS)
Fork Insight integrated Aero Alloy straight blade
Rear Shock N/A
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
Brake Levers Tektro RS w/reach adj.
Brakes Alloy Linear
Cassette Shimano 18t sproket for internal gear hub
Rims 32h Weinmann ZAC-19 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 Black
Chain KMC-Z51
Hubset (F) 32h Alloy QR (R) 32h Shimano Nexus internal 8-spd
Spokes Black 14g Stainless Steel
Grips Avenir Ergo 3-D Comfort
Extras Owner’s manual, Chainstay Protector, Clear Coat, H20 bottle mounts
Note Specifications Subject to Change

Geometry

Size 15" Small 17" Medium 19" Large 21" XLarge 23" XXLarge
Seat Tube Length ** 15.0" 17.0" 19.0" 21.0" 23.0"
Standover Height 28.0" 29.0" 30.5" 32.0" 34.0"
Top Tube Length * 21.5" 22.0" 22.6" 23.0" 24.0"
Head Tube Length 130.0mm 140.0mm 150.0mm 170.0mm 170.0mm
Head Angle 70.0° 71.0° 71.0° 71.0° 71.0°
Seat Angle 74.0° 74.0° 73.0° 73.0° 72.0°
Wheel Base 1045.0mm 1051.0mm 1052.0mm 1053.0mm 1057.0mm
Chain Stay Length 440.0mm 440.0mm 440.0mm 440.0mm 440.0mm
Fork Offset 48.0mm 48.0mm 48.0mm 48.0mm 48.0mm
BB Height 295.0mm 295.0mm 295.0mm 295.0mm 295.0mm
Stem Length 80.0mm 90.0mm 90.0mm 100.0mm 110.0mm
Handlebar Width 600.0mm 600.0mm 600.0mm 600.0mm 600.0mm
Crank Length 170.0mm 170.0mm 175.0mm 175.0mm 175.0mm
Seat Post Length 300.0mm 300.0mm 300.0mm 300.0mm 300.0mm
* Measured Horizontally ** Measured from Center
Site Map | Bikes Archive | Diamondback For Life