Energize
Your Ride
We
develop and manufacture bicycle-electric components with high
customer utility and technological and ecological benefits. Our
target audience: commuters, sportive and touring cyclists who need
highly durable equipment.
Rim-Drive / Velospeeder E-Bike Motor
Rim-Dynamo
/ AC-Dynamo for AC-LED-Lights
Velo
On-Board Power Supply / Universal Power Source &
3-Phase
Generator
Velogical´s Products Are Addictive
Smooth Running, Lightweight, Efficient, Durable
HighEnd Tandem Bicycle - for Sophisticated Touring Riders Short - Versatile - Light - Suspension
The Velogical Compact Tandem is a short lightweight tandem bike with amazing tight turning circle. The right-handed synchronous chain enables direct power transfer and the use of high quality standard components to minimize weight and wear.
Optimised
aerodynamic properties, thanks to the sophisticated frame geometry,
increase the efficiency pedaling at higher riding speeds.
The classic features of a tandem complete the overall performance: traffic-safe communication during the trip, in addition to protection from the headwind for the Stoker, shared experiences, arrival together.
Technical Data and Equipment
The Velogical Compact Tandem is currently offered in one frame size. The proportions of the tube dimensions of this framework are recommended for people with a height up to 185cm and a weight of up to 85kg i. Within this range, the optimal fine tuning can be perfomed by the individual choice of components.
For body measurements outside the recommended optimum range there is, in our experience, still a generous tolerance range for the appropriate use, because of the multiple options when choosing and adjusting components. Our tests with drivers with a body length of 200cm went really smoothly, but we recommend in these cases definitely a personal appointment with us to ensure a satisfactory solution for the customer.
Velogical Compact Tandem photo album
Configuration Models (Overview)
Wheelbase
Length over all
Frame height at front / rear
Front wheel
Rear Wheel
Fork
Brakes front / rear
Crankset, front / back. modified / VEL
Drivetrain 2x9 = 18 input
Deconvolution max / min
Rack
Mud guards
Lighting
Dynamo
Castle
Speedometer
Weight complete equipment
All information is subject to technical changes
Sport
Version (Deore XT 48/36)
1537mm
2185mm
555/470mm
Schwalbe
Marathon Racer 40-559
Marathon
Schwalbe Kojak 50-559
SR
Suntour Duro DJ-E
Avid
"Ball Bearing 7 MTB" ∅ 203/160
2x
Shimano Deore XT 48/36
weight-optimized
chainrings,
hollow forged crank arms,
1x
Front 36 teeth, rear teeth 36/36/48
CS-HG73-9 11-32
9.13
/ 2.35m Spread: 3.88
18.7kg
Tour Version (Deore FC-M591 48/36)
1537mm
2185mm
555/470mm
Schwalbe
Marathon Supreme 42-559
Schwalbe
Marathon Supreme 50-559
SR
Suntour Duro DJ-E
Avid
"Ball Bearing 7 MTB" ∅ 203/160
Shimano
Deore FC-M591 48/36
stability-optimized
chainrings,
die
forged crank arms
1x
Front 36 teeth, rear teeth 36/36/48
CS-HG50-8 11-32
9.13
/ 2.35 m Spread: 3.88
Racktime
H.R. system rack Fold-it
Hebie
Viper MTB 24-28
B+M
Cyo, B + M Toplight Flat Plus
COMPACT
dynamo / VELOGICAL eng.
Cable
Lock Trelock Security Level 4
Sigma
BC 509 Bike Computer Topline
20.7kg
Details
Features Series Models Sport Version + Tour
Version
Framework
Mannesmann Tube Kit aircraft chromoly tubing
Painting RAL 5026 Night blue powder coated (Product Photos)
Stand: without
Lighting
Headlight Busch & Müller Cyo
Rear light Busch & Müller Toplight Flat Plus
Rim-dynamo COMPACT dynamo by VELOGICAL engineering
Chassis
Front
rim EXAL XL25 26 "silver 559-25 VL 8,5mm, holes for 36spokes
/
clincher tires
Rear rim Schrader DH.35 26 "559x29 black holes for 36spokes / clincher tires
Front Hub Shimano Deore HB-M525 / black / 36hole / disc
Rear hub DT Swiss 540 tandem / black / 36hole / disc
Alpina spokes "Strong" (ED) Ø 2.34 / 2.0 x 254
All information subject to technical changes
Drivetrain
Bottom Bracket Shimano
Hollowtech
Chain Shimano CN-HG73
Hyperglide 9-fold
Derailleur SHIMANO
Deore 9-black, large rear derailleur
Tensioner Tacx Jockey
Wheels "T4090" 11teeth with ball bearings!
Shifter Shimano
9-speed right
Shifter Shimano
3-speed left
Pedals MTB bearings
black
Cockpit
28.6 Headset FSA
semi-integrated VP
Stem 120mm 25.4
handlebar
Stem back XtasY
downhill "Professional" 1 1/8 "Handlebar 25.4
HUMPERT trekking
handlebars forward-L. "Exclusive" Height 50, width 590mm aluminum
black
Avid Speed Dial 7
Brake Lever Graphite gray
Arm rear HUMPERT
English handlebar grip length 510mm
Handles X-ACT Bar Ends
EVO 1 black leather
Front seatpost Kalloy
Seatpost 400mm
Rear seatpost Sitting
Bull suspension seatpost "Fool Bull"
Sport version -
caliper CONTEC MTB / ATB saddle "Volare Hybrid"
Sport version -
caliper rear CONTEC MTB / ATB saddle "Volare
Hybrid"
Tour version - caliper
Selle Royal Lockin saddle moderate black
Tour version - caliper
rear Selle Royal saddle Lockin saddle moderate
black
All information subject to technical changes
Color World - Modern and Timeless
Series colors / RAL colors these are processed regularly:
Pearl night blue powder coated gloss (RAL 5026, RAL 5003)
and gold lettering
Graphite powder coated matt black (RAL 9011) and black
lettering depth
Special Colours / Availability on request:
Blue colors & lettering gold (metallic silver), RAL 5003 Saphire blue RAL 5004 Black blue, RAL 5008 gray-blue, RAL 5011 Steel blue RAL 5013 cobalt blue, RAL 5022 Night blue - see pre-production model (matt powdered), RAL 5026 Pearl night blue
Pastel blue-gray lettering Red & Blue colors, RAL 5014 Pigeon blue
Shades of red & gold lettering (white, silver metallic, black and gray), RAL 3003 Ruby red RAL 3004 purple, wine red RAL 3005, RAL 3012 beige red, RAL 3032 pearl ruby
Yellowish hues & Lettering Dark gray, RAL 1000 Green Beige RAL 1014 Ivory, 1015 Light Ivory RAL 1020 olive yellow, RAL 1027 yellow curry, pearl beige RAL 1035
Shades of white & gray lettering black (metallic silver, red), RAL 9016
Black and white colors & lettering (silver metallic), Black, Brown RAL 8022, RAL 9004 Signal black RAL 9005 black, RAL 9011, RAL 9017 Traffic black
Black and Grey colors & lettering jet black (gray), RAL 7016 Anthracite gray RAL 7021, RAL 7024 Graphite gray RAL 7026 Granite gray RAL 9004 Signal black RAL 9007 gray aluminum RAL 9023 pearl dark gray
Gray shades & lettering gold (bronze, yellow), RAL 7021, RAL 7026 Granite gray RAL 7032 Pebble gray RAL 7034 Yellow gray RAL 7035 light gray, RAL 7038 Agate gray RAL 7044 Silk gray RAL 7047 Tele gray, RAL 7048 Perlmausgrau, RAL 8019 Grey brown RAL 9001 cream white, RAL 9002 white, RAL 9010 white, RAL 9018 Papyrus White
Dark brown tones & green lettering (gold, white), RAL 8014 Sepia brown RAL 8017 Chocolate Brown
Green colors & lettering black, RAL 6002 Leaf green RAL olive green, RAL 6004 Green RAL 6005 Moss green RAL 6007 Bottle green RAL 6009 Fir green RAL 6012 Black green RAL 6013 boat green, RAL 6019 white green, RAL 6020 Chromdioxidgrün, RAL 6021 pale green, RAL 6034 Pastel turquoise RAL 6035 PEARL GREEN
- Original RAL color fan (glossy, matte) & lettering in the corporate look at customer appointments available
- Matt powdered RAL color is enhanced about 10% brighter than glossy RAL colors (surface scattering)
- Colored lettering match the scale of HKS inks
Note - the presentation of colors
in the internet is for guidance only
Click RAL color fans online:
RAL color groups:
Who?
Behind the development of the products shown above is the Cologne (Germany) based company VELOGICAL engineering GmbH. Was that not what you were expecting? VELOGICAL owner Dipl. Ing. Peter Frieden is by profession a developer of wind energy installations, in particular the wind certified turbine Easywind 6 for off-grid energy supply. These have earned the description "stormproof" because they can carry on producing power, unrestricted, even in a hurricane. Before that Peter Frieden directed the vacuum pump development department at Oerlikon Leybold Vacuum. His product developments, protected by numerous patent applications, have been successfully applied worldwide and are outstanding in both their high efficiency and in their reliability and low maintenance. Currently he is developing high efficiency special products to address as yet unsolved technical problems in cycling.
Seizing the Initiative - a Way of Redesigning a Tandem
At the end of our tandem trip along the Lahn in the autumn of 2009, my partner M. and me left behind our 28 "tandem. Without any suspension and with its narrow, hard-edged tires, it lacked all the comforts and on top of that it was not even particularly fast. - I thought, it must be possible to move around much more elegant.
On the weekend of our return we started an intensive Internet search for a suitable successor vehicle. The aim was to find a tandem that runs smoothly over bumpy roads and elegantly around the corner - but unfortunately there was no real hit on the market aviable for us.
The only model that came quirte near to our expectations after a long search was a lonely no-name used tandem. At least, the frame geometry already fitted halfways into our concept. Our "suffering" was great and so we went on the same weekend to Nuremberg to pick up the vehicle there. With tools, welding and lathe the rear head tube was improved. Then the tubes were repainted and then the wheel was completely rebuilt - of course with new and better components. The result proved gave us the feeling of a giant step in the right direction and in the following time I was still optimizing the wheel and tire combinations decided to reduce the rolling resistance.
After the experience of this project study, one and a half years later, I invested time again in order to optimize the tuning of the frame geometry. The goal was to crown project with a new tandem from a single source and to bring it to perfection. This time I needed a professional framebuilder. With Dietmar Hertel, which I would like to thank again at this point, I found the specialist who is well known not only for outstanding prototype framework., He advised me competentely in many technical matters, last but not least he helped with the selection of high-quality components with optimum performance ratio for a tandem and low weight. The masterpiece of this process is now named COMPACT Tandem.
Construction / installation: VELOGICAL engineering GmbH, Dipl. Ing Peter Frieden, Cologne
Prototype: Dietmar Hertel, known german frame builder, Rhineland
Series production: Stefano Agresti, Italian specialist for frame construction
in 3 Generation of the family, Rhine-Main area
Contact us: team@velogical.eu
Test Ride: +49
(0)177 7820849
© VELOGICAL engineering GmbH