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STEEL MOUNTAIN BIKE HARDTAIL
TANZANITE
Ride any trail
“TANZANITE. Steel is real and offers legendary ride characteristics and durability.”
DESIGN PHILOSOPHY AND CHARACTER
KONSTRUVTIVE TANZANITE steel bikes are designed for a wide range of applications.
With the classic frame material of steel, we are still staying true to our philosophy of „Less Mass – More Joy on any Terrain“.
DETAILS
Typical for KONSTRUCTIVE CYCLES is the consideration of every detail to make this model ready for every circumstance as well: agile All-Mountain-Geometry, Front Derrailleur compatibility, Single-Speed compatibility and adjustable chainstay length (425 – 435 mm) through rocker-drop-outs, ISCG 05-mount, post-mount discbrake mount, room for wide tires, exchangeable drop-outs for different axle standards, and lots of other features (see below).
FRAME
The beautifully welded steel-frame is made of the highest grade tapered tubes we could find. Just like all of our other models, the TANZANITE is of course manufactured by the finest craftsman in Europe and assembled in Berlin, Germany.
RANGE OF APPLICATION
Some would even call it ENDURO, we call it R.A.M.: Ride and Race All Mountain. With the large range of compatible fork-travel lengths of 100 to 140 mm, everybody can find their perfect setup to have fun in even the gnarliest terrain. In our standard setup with a 120 mm fork and the KONSTRUCTIVE all-mountain-kit we get a complete weight of 10,5 kg. With that, the bike will not weigh you down on the climbs but be a trustful companion on all your epic rides no matter if it’s going up or down.
FULL-CUSTOM DREAM-BIKES
TANZANITE frames can be individually fitted and constructed to your body measures. The Full Custom Option also entails the fitting of the bike to your individual needs when it comes to ride characteristics. From a race oriented geometry through a comfort oriented geometry all the way to a travel bike geometry for extremely long rides our portfolio offers optimization potentials which are based on bio-mechanic principles.
TECHNICAL DETAILS OF THE PICTURED BIKE
TANZANITE PRO XX1 PRO Bike
Size / Bike weight / Frame weight: Large / 10,5 kg / 2.300 g
Design Style and color: Konstructive Raw Steel
Dream-Bikes for Dream-Rides
Custom Bikes offer more fun than standard bikes. Take our word for it. We have been riding them for 30 years.
• Most advanced fabrication methods
• Developed in Germany, handmade in Europe
• Typical steel ride qualities and frame durability
• Excellent stiffness-to-weight-ratio
• Custom sizes and tailor-made frame building with individual features available
• Custom colour and graphic design options available
• Large selection of configurable options to create the ultimate Dream Bike
Ideal for
OFFROAD RIDERS & RACERS
Advanced Trail-Biking
Long distance riding
Fitness-Training
Advanced Cycling Skills and Endurance Training Programs are the perfect addition to your Dream Bike!
Craftsmanship
Our Master Craftsmen build High-Performance Bicycle Frames with Premium Steels and Advanced Carbon Composite Materials from Europe.
Frame Geometry
| Frame size | S | M | L | XL | |
|---|---|---|---|---|---|
| Seat Tube | A | 390 | 425 | 470 | 520 |
| Effective Top Tube | B | 580 | 596 | 615 | 635 |
| Seat Tube Angle | SA | 74° | 74° | 74° | 74° |
| Head Tube Angle | HA | 68° | 68° | 68° | 68° |
| Chainstay Length | C | 420 | 420 | 420 | 420 |
| Horizontal Chainstay | HC | 415 | 415 | 415 | 415 |
| BB-Drop | D | 65 | 65 | 65 | 65 |
| BB-Height | H | 310 | 310 | 310 | 310 |
| Head Tube Length | S | 90 | 100 | 110 | 120 |
| Fork Length | F | 515 | 515 | 515 | 515 |
| Reach | R | 404 | 417 | 433 | 449 |
| Stack | St | 624 | 633 | 643 | 652 |
| Wheelbase | W | 1094 | 1110 | 1130 | 1150 |
| Measured in millimeters. |
Specifications and Frame Details
| DESIGN PHILOSOPHY | |
|---|---|
| Modern and optimized steel frame tubes from selected steel manufacturers specific to load | |
| Frame design with sloping top tube for low frame weight and great handling characteristics | |
| Compatible with rigid forks with tapered steerer tubes | |
| Developed in Berlin; Germany; handmade in Europe | |
| FRAME WEIGHT | |
| Low frame weight. 2.300 g in size large | |
| FRAME MATERIAL | |
| High-Performance CroMoly Steel | |
| Durable brushed surface | |
| FEATURES | |
| Post-mount disc mount inside of rear triangle for 160mm discs | |
| External shift-cable routing under down-tube. Easy serviceable. | |
| Tire clearance for 29 x 2.35 inch tires (tested with 2.35" Schwalbe Nobby Nic tires) | |
| Tire clearance for 27.5"Plus x 3.0 inch tires (tested with 3.0" Schwalbe Nobby Nic tires) | |
| Removable derailleur hanger | |
| HEADSET | |
| 44 mm head tube for mixed taper head-sets | |
| SEATPOST | |
| 31,6 mm seatpost diameter; 400 mm length recommended | |
| Seatpost clamp with 35 mm diameter | |
| DERAILLEUR | |
| Front derailleur clamp with 34,9 mm diameter | |
| „Top-Swing“ or „Bottom-Swing“ compatible with cable from below (Bottom-Pull) | |
| TRANSMISSION | |
| Compatible with 1 speed; 2 speed and 3 speed systems | |
| Compatible with SRAM Eagle; chainring up to 34 teeth | |
| 73 mm wide Press Fit 30 bottom bracket with alloy interface | |
| Rear axle system: 148 mm x 12 mm through axle | |
| COLORS | |
| Raw steel with clear coat for the most robust and lightest surface | |
| Custom colors are available for our Custom Dream Bikes | |
| SPECIAL FEATURE | |
| Konstructive steel frames are completely repairable. | |
| Subject to change without notice |
Dream-Bike Manufactory
Configure your ultimate Dream Bike. Our Konstructive Dream Bike Consultants will help you to select the right components and wheelsets from the best premium manufacturers. Based on your personal preferences we will design the look of your bike. Individual paint schemes and graphic designs are available for frames, forks, components as well as wheel systems. You can choose any component and groupset for your drivetrain, shifting and braking system that the market has to offer. We assist you in finding the best parts for your field of use and cycling goals. Just contact us any time to start your Dream Bike project.
Dream-Bike Configuration Tool
We create bikes based on your body dimensions, wishes and personal preferences.