Insight STI-8

“Comfort and convenience of upright geometry with the swift efficiency of a road bike.“

The Insight series fits into the Performance Hybrid category. Taking the best from both the mountain and road worlds, The Performance Hybrid combines their elements to create the ultimate machine. Larger-diameter 700c wheels offer an efficient platform for this nimble, lightweight bike that’s suitable for commuting, training or simply a weekend ride. Our Insight series also embraces performance factors valued by today’s training racers and charity riders.

The 2012 Insight STI-8 performance hybrid is a top of the line bike aimed to please those who commute, train exercise, or are simply looking for a smooth riding bike to recreate on.

The basis of the Insight STI-8 is the 6061-T6 Butted Aluminum Performance Hybrid frame with a formed/hooded top tube, an integrated headtube, and vertically compliant stays (VCS).

Fit specifically for the frame is an Insight Integrated Alloy aero straight blade fork keeping your ride smooth, stable and precise. Simplicity is key here and we’ve made things as simple as possible by providing a Shimano Nexus internally geared 8spd hub in the rear and a single 38tring up front. This keeps maintenance simple and your ride quiet at the same time. The hub sports a Shimano 18t sprocket in the rear so if has the look and feel of a single speed while providing the 8 separate gearing options… all controlled by a Shimano SL8S-20 light action 8spd, twist grip shifter. That’s right folks… no derailleurs!

The 32h Equation R23 Doublewall rims are tough and will keep things spinning in the long term. Kenda Kwick Trax puncture resistant 700×32c tires complete the wheel package and provide great puncture protection for your daily commute or those long event rides.

Tektro linear pull brakes with reach adjust afford a fair amount of stopping power sure to keep you out of harm’s way. The rest of the cockpit is proprietary Diamondback alloy with an oversized handlebar and 3D Forged 7° stem to give the appropriate rise for maximum steering control and comfort.

A DB Performance Hybrid saddle with gel sits atop a 27.2 alloy micro adjust seat post offering an exceptionally comfortable ride whether that be in your next cause ride or simply around the block.

The Diamondback Insight STI-8 is gloss black and comes in 5 sizes: SM (15"), M (17"), LG (19"), XL (21"), XXL (23").

If you are looking for the Crème de la Crème of the performance hybrid category… look no further.

Highlights:

  • Butted 6061-T6 Aluminum Insight Performance Hybrid Frame
  • Insight Integrated Alloy Aero Straight Blade Fork
  • Single Gear Crankset w/ Integrated Chainguard
  • Shimano Nexus 8-spd w/Nexus Twist Shifter
  • Weinmann Double Wall Alloy Rims

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 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 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

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