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 Rim-Dynamo - the Tiny Jewel for LED-lighting on Bicycles Smooth Running - Lightweight - Efficient
For LED Bike Lighting
VELOGICAL Dynamo, Miniaturized
Smooth Running, Powerful
With patented bracket system
Adjustable contact pressure
A durable companion on the bike
The alternative to hub dynamos
Noble hub sets remain complete
Installation
examples
Left:
suspension fork slider tube
Middle: road bike seat stay
Right: brake boss V-brake
The elegant mini Rim-Dynamo by VELOGICAL is extremely smooth running lightweight - a high-end durable standard component for the use with LED lighting systems on bicycles. Modernly designed for year-round cyclists and sportive cyclists.
Configuration dynamo set
Select a dynamo version suitable for your range of use
Select a special bracket for your installation
More
questions about the choice of the dynamo bracket?
E-Mail to team@velogical.eu kindly with photo of the
bicycle
Rim-Dynamo sets samples / Dynamo Installations for Framebuilders
Dynamo SPORT Dynamo TREKKING Dynamo SPECIAL Brake Boss Adapter Frame Stay Adaptor (Short, Medium, Long)
(sold out)
We replace the dynamo SPECIAL by the
3-PHASE GENERATOR bundled with the UNIVERSAL POWER SOURCE.
Product launch in late summer 2020. We keep a waiting list with preorders.
Versions and Applications
Select a Dynamo
”SPORT” model: red colour, for universal use from 10kph (6,2mph)
For minimal ride resistance and maximum speed.
“TREKKING” model: natural colour, for universal
use from 8kph (5mph);
For
low ride resistance and reserves of power when riding more slowly,
for double headlight set-ups, for city riding speeds and for
sportive use.
”SPECIAL” model: blue colour, for special use from 5kph (3mph)
Maximum power supply even at low speeds for special applications.
Hint: sold out
We replace the dynamo SPECIAL by the 3-PHASE GENERATOR
bundled with the UNIVERSAL POWER SOURCE.
Product launch in late summer 2020.
We keep a waiting list with preorders.
Learn
more
Distribution
Consumerprice
Direct
Marketing in the EU: €
150,00 / including sales taxes, plus
shipping/PP; out of the EU: € 126,05 plus local
taxes, shipping/PP.
B2B
prices
On request
for dealers, workshops, manufactures
with official registration data.
Order information
You can order your VELOGICAL Dynamo on this website.
Rim-Dynamo sets samples, click here
German certification
With german certification according StVZO
Technical data
Dynamo
type: rim dynamo / new side-running concept /
Over-voltage protection with LED front lights: see light selection
and recommendations.
Weight (Dynamo only): 52g
Weight (Dynamo with bracket): 70-90g
(depending on bracket type)
Efficiency at 30kph (18,6mph): more than 60%
Efficiency at over 30 kph (18,6mph): up to 75%
Electrical data: Speed dependent
(see table download from our website)
Slip
resistance: defined contact pressure on rim flank (adjustable),
rainproof lighting
Drive wheel with O-ring: UV light resistant, industrial
quality
O-ring service interval: replace after 5000-7000km (3110-4350mi) of dynamo use (guideline from experience)
Service: Manufacturer VELOGICAL engineering GmbH
Warranty
period: 2 years from the purchase date,
on production of the original receipt.
In the box
- 1 Special bracket, type selected when ordering:
Brake boss adapter left for brake boss fitting,
Left mounting or rear right mounting;
Brake boss adapter right for brake boss fitting,
Right mounting or rear left mounting;
Frame stay adaptor short 12/20mm Ø frame tube attachment;
Frame stay adaptor middle 20/32mm Ø frame tube attachment;
Frame stay adaptor long 32/46mm Ø frame tube attachment;
- 2 O-ring /drive wheel for fast riders
- 2 O-ring /drive wheel for normal riders
- 1 Thermistor
- 1 Set heat shrink tubing
- 1 User manual
- 1 Allen key 2mm Ø (hex key)
Side selection
Left mounting is standard for all versions
Right mounting available on request
(may affect delivery time)
All specifications are subject to technical change.
Test
Velogical Dynamo Version Standard Alternating Current/AC
Fahrradzukunft GER
Radtourenmagazin GER
Bear Bones Bikepacking UK
Elessar
Bicycle Italy
Test
Forumslader Version for Hub Dynamo Alternating Current/AC
Fahrradzukunft GER
Fahrradbeleuchtung GER
Installation & maintenance note
! Before installation grease the brass tube / torsion tube and the dynamo borehole with bearing grease by help of a tooth pick.
Don´t wipe away the placed grease on the parts when unpacking !
Simple Requirements for the VELOGICAL Dynamo
A rim with a braking surface or a rim with perpendicular flank
4mm or more. Technically and visually these are fully compatible with all types of hub and all types of brake.
Over-voltage protection built into the lamp with metal cooling
surface or metal housing. Light installation with
VELOGICAL thermsitor (overcurrent
protection). The high efficiency of the
VELOGICAL Dynamo necessitates over-voltage protection,
which converts excessive electrical energy harmlessly into
heat. In combination with the additional overvoltage
protector
SHIMANO "SM-DH10A", additionally to the VELOGICAL thermistor every
LED Bikelight can be used.
Suitable LED front lights (40 lux and more) are offered by, for example, manufacturers including SUPERNOVA, B+M(Busch+Müller), HERRMANS, TRELOCK or SON(Schmidt Maschinenbau).
When combined with VELOGICAL-approved LED cycle lights, the VELOGICAL Dynamo will demonstrate impressively just how much power lies within, delivering night-time illumination ideal for navigating unlit cycle routes even at high speed – and of course also for general safety purposes in traffic.
LED light installations with VELOGICAL rim dynamo
Installation
Samples & Brackets
click here
Rim-Dynamo Sets Samples (1 Dynamo + 1 Bracket) click here
Select a Special Bracket for the VELOGICAL Dynamo
More
questions about the choice of the dynamo holder?
E-Mail to team@velogical.eu kindly with photo of the
bicycle
Brake Boss Fitting
Brake boss adapter "left fitting"
Priority front wheel
!Center-center brake boss 80mm (current version since about
2000)
-
Fitting on the left (front), or right (rear)
- For rim brake bosses on telescopic forks
- For rim brake bosses on rigid forks
- For rim brake bosses on rear stays
(current
V-brakes, cantilever brakes / 80mm center-center b.boss)
- For framebuilders (+
additional custom part, seat stay
installation)
- Frames made from aluminium, carbon, steel, titanium
- ANY
frame tube shape
- Check barriers
Right side version only for installation with Magura
hydraulic brakes
Reverse mounted brake bosses on front forks with 20 inch
wheels
and smaller, pointing to the rear:
Please ask for a special adjustment (no additional
costs),
Please look for potential conflicts with stays by fenders
and racks
Space needed in front of V-brake arm standard 45mm
Space needed in front of V-brake arm with parallelogram
55mm
Brake boss adapter "right fitting"
Priority front wheel
!Center-center brake boss 80mm (current version since about
2000)
- Fitting on the right (front) or left (rear)
- For rim brakes as described above
- For
Magura hydraulic rim brakes
- Check barriers
Reverse mounted brake bosses on front forks with 20
inch wheels
and smaller, pointing to the rear:
Please ask for a special adjustment (no additional
costs),
Please look for potential conflicts with stays by
fenders and racks
Space needed in front of V-brake arm standard
45mm
Space needed in front of V-brake arm with
parallelogram 55mm
Frame Stay Fitting (on Straight Tubes Without Brake Bosses)
- !Provide the diameter of the tube at the location where the dynamo will be mounted (around 30mm below mid of the rim flank).
- !For oval tubes which are oriented aerodynamically in the riding
direction, give the (largest) diameter in the riding direction.
-
!Oval tubes set fashionably at right angles to the riding direction
will be
treated as round tubes, and the diameter
at right angles to
the riding direction is critical."
Frame stay adaptor short 12/20 "left fitting" in driving direction
Priority rear wheel
Option: right fitting by reverse installation (against driving direction)
- For 12 -20mm tube diameters (3 size settings):
- For
rear triangle/seat stays (aluminium, carbon, steel,
titanium)
- WITHOUT bosses for rim brakes and frame lock.
- Use the flexible underlay pad supplied
- Tube cross-section must be ROUND or OVAL (30mm below rim)
Frame stay adaptor medium 20/32 "left fitting" in driv. dir.
Priority rear wheel
Option: right fitting by reverse installation (against driving
direction)
- For 20 - 32mm frame diameter (3 size settings)
- For rear triangles/seat stays (aluminium, carbon, steel, titanium)
- For rigid forks (aluminium, carbon, steel, titanium)
- For telescopic forks for disk
brakes
-
WITHOUT bosses for rim brakes
- WITHOUT fixed cable clips until 5cm below top edge of the
rim
- Use the foam rubber underlay pad supplied
- Tube cross-section must be ROUND or OVAL (30mm below rim)
Frame stay adaptor medium 20/32 "right fitting" in driv. dir. Priority front wheel
Option: left fitting by reverse installation (against driving
direction)
necessary e.g. with rim brakes (type caliper, road
bike)
- For 20 - 32mm frame diameter (3 size settings)
- For
rigid forks (aluminium, carbon, steel, titanium)
- For telescopic forks for disk
brakes
- For rear triangles/seat stays (aluminium, carbon, steel, titanium)
-
WITHOUT bosses for rim brakes
- WITHOUT fixed cable clips until 5cm below top edge of the
rim
- Use the foam rubber underlay pad supplied
- Tube cross-section must be ROUND or OVAL (30mm below rim)
Frame stay adaptor long 32/46 "left fitting" in driving direction
Priority front wheel
Option1: right fitting by reverse installation (against driving
direction)
necessary e.g. with rim brakes (type
caliper, road bike)
Version2: right fitting bracket (on
demand)
- For 32 - 46mm frame diameter (3 size settings)
- For
installation scenario as for frame stay adaptor
medium
-
WITHOUT bosses for rim brakes
- WITHOUT fixed cable clips until 5cm below top edge of the
rim
- Use
the foam rubber underlay pad supplied
- Tube cross-section must be ROUND or OVAL (30mm below rim)
Front fork fitting on Brompton Folding Bike - for steel fork only
Clamp adapter special Brompton Folding Bike
Front fitting reverse on fork blade right side
- Minimum adjustment
- ONLY for Brompton "steel fork"!
- NOT for Brompton "titanium fork"!
Fitting to special bikes and unusual cases,
Check Feasibility First !
-
Recumbents: usually fits via the front fork
For framebuilders & professionals
Special
cases often possible by special adaptations or brackets.
- Please have tubing dimensions to hand
- Velomobiles
- Recumbents, trike designs with diagonal seat stays
-
Special bikes with unusual frame to wheel distances
- Spacers on demand
Check barriers:
- Reverse mounted brake bosses on front
forks pointing to the rear
Specially with small wheels (20 inch and
smaller)
- Please ask for a special adjustment (no additional
costs),
- Please look for potential conflicts with stays by
fenders and racks
Special cases NOT universally possible to fit:
- Shaped tubing with sharp corners (hydroformed)
- Extreme oval tube profiles
- Narrow placed brake bosses cantilever generation 1 early 80ties
- Recumbents, trike designs with horizontal seat stays
Cable colours
- Black
Compatibility
The VELOGICAL Dynamo is compatible problem-free with all types of hub, any wheel size and type of tyre, without any restriction of functionality and without any painful extra costs from special adaptations. For special applications we will be happy to advise on cable routing questions. Please contact us.
Assembly accessories: lamp brackets inc. handlebar mounts
rm (Riese & Müller) lamp bracket for handle bar and for suspension fork (head tube)
B+M (Busch + Müller) dynamo bracket (position long side outside) for horizontal lamp mounting with steel forks
SON (Schmidt Maschinenbau): Products, Accessories
Spanninga: dynamo light accessories
www.fahrrad.de: cycle accessories, "Mounts"
Komponentix
Onlineshop: front lights category,
accessories
for front lights (at the bottom)
Certification, StVZO Regulations and Design Interpretation
VELOGICAL
obtains a StVZO approval according german law regualtion for all
three dynamo variations. According to the certification the
requirements are met to the power class of 6V 1.5 watts at 15kph
(9,3mph) on a digital load according DIN 33958, the new neutral
simulation of LED lighting.
The performance of an LED bicycle light with light-based overvol-tage protection is characterised by the light output at particular speeds and not by a defined voltage curve at particular speeds. The possibility of storing power for standlights and slow riding is also implemented in many LED lights.
Efficient and powerful on-board electrical supply (for USB sockets, buffer batteries, on-board electronics devices) can best be achieved with a free-floating dynamo voltage, from which the necessary power can be extracted as required. Thus the power production within the dynamo, and regulation technology outside it, should sensibly be strictly separate.
Dynmao front fork fitting on Brompton Folding Bike - for steel fork only
Testimonials
VELOGICAL Dynamo with C.V., year-round cyclist/commuter from Hamburg
"In the meantime I finally managed to install your dynamo. Cool component, I really like it! The assembly was easy. It makes a little sound while driving, but that doesn't bother me. I hardly notice the resistance. My lamps light up and I never have to pay attention that any batteries are charged. Great! He has already passed a rain ride without any problems. I am curious about snow and ice."
VELOGICAL
Dynamo with M.H.´s Gravel-Racer cycling
from Berlin to Helsinki reporting on his
blog Cyclingtourist:
3. …. "This is the first trip on my new Cyclocross Bike. ……..
b) "On this tour there are some day distances that will require me to cycle in the dark or at night. I had no desire to rely on battery lamps but wanted to be sure I have good lights available whenever needed. However, installing a dynamo hub was no option. There seems to be only one alternative on the market, namely rim dynamos by Velogical Engineering who are by coincidence located in Cologne (my place of residence). They were extremely helpful in finding the perfect solution for my purposes and were willing to answer all my questions about the infinite technical options around energy generation and lights."
Recommended LED Bike Lights, Version for Dynamo/Alternating Current/AC & Bicycle Chargers for Dynamo
LED front lights
Overvoltage
protection, metal cooling surface or metal housing, 40 lux and
more
B+M (Busch+Mueller)
IQ-X all Sub-Models
IQ-XS all Sub-Models
EYC all Sub-Models
CYO all
Sub-Models
CYO
PREMIUM all Sub-Models
LUXOS B
LUXOS U from series 2 on (tested 04_2014)
SUPERNOVA
E3 PURE 3
E3 PRO 2
E3 Triple
EXPOSURE LIGHTS
Revo Dynamo
HERRMANS
H-One S
H-Black Pro
TRELOCK
LS 885
LS 875
BÜCHEL
Secu Evolution
SON / SCHMIDT MASCHINENBAU
Edelux
Edelux II
SON partially warns to use a combination of Velogical Dynamo plus Edelux, but it should be noted, that SON is a manufacturer of competing dynamo products.
PHILIPS
SafeRide ® LED-Headlight
All specifications are subject to technical change
In
combination with the additional overvoltage protector
Shimano "SM-DH10A", additionally to the VELOGICAL
thermistor every LED-Bikelight can be used.
Bicycle
chargers
with
charging current control
not
optimized for hub dynamos, suitable for
rim-dynamo
No
connection in parallel to AC LED lights for dynamo:
FORUMSLADER
for VELOGICAL contact form, click here
LED rear lights
SPANNINGA
PIXEO XS
Installation: seat stay, seat tube, mud
guard (fender)
NR 9
VENA
Installation: mud guard
(fender)
BÜCHEL
LED
FIRE
Installation: mud guard (fender)
B+M (Busch+Mueller)
SECULA
PLUS
Installation: seat post, seat tube, seat
stay
SECULA PLUS
Installation: mud guard (fender)
SECULITE PLUS
Installation: seat stay, mud guard (fender)
LINE
LINE SMALL
MINI
FLAT S
TOPLIGHT (and others)
Installation: rear rack
PHILIPS
SafeRide LED-Rearlight
(Vers. Dynamo)
Installation:
rear rack
SafeRide LED-Lightring (Vers. Dynamo)
Installation: seat post
SON / SCHMIDT MASCHINENBAU
Rearlight
Installation: mud guard (fender), seat post, rear
rack
SUPERNOVA
E3
Tail Light /
Only
in combination with SUPERNOVA Head Light
Installation:
seatpost, seat tube, rear rack
All
specifications are subject to technical change
VELOGICAL Dynamo Overview
- Extremely smooth running (drag below the perception threshold)
- Minimal weight and miniature form factor ∅ 75g (depending on the bracket)
- Extremely high efficiency (> 60 - 75%)
- Latest materials technology and high power rare earth magnets
- Preservative use of raw materials
- Disengageable (by folding away)
-
Retrofittable and universally compatible
- optimized contact surfaces, rainproof lighting
- For LED lights with metal cooling surface (40 lux and more)
Seizing the Initiative - the Story of an Innovation
The VELOGICAL
Dynamo is an extremely lightweight high end LED
lighting power system for bicycles in a miniature form-factor. Its
'hard skills' are extremely smooth running (low drag) even at high
riding speeds, minimal weight and high efficiency for use with
modern LED bicycle lights. This compact dynamo genuinely weighs
less than a mere 75g! And it operates with minimal resistance,
below the perception threshold. Thanks to highest electrical
efficiency it supports passive safety in traffic while working as a
daylight running light, too. This patented bicycle dynamo for LED
lighting has been developed especially for the requirements of
sports-oriented cyclists.
The VELOGICAL bicycle dynamo is a so-called rim-dynamo, because it runs on the flat braking surface of the rim. The design of the adjustable bracket achieves optimized contact pressure with minimal contact patch. The miniaturized VELOGICAL Dynamo with its remarkably powerful output is an alternative to hub dynamos. In doing so, the VELOGICAL Dynamo runs without wear on the rim wall, and can also be driven without problems on carbon rims. The internal mechanism of the VELOGICAL Dynamo is practically wear free. It works with unobtrusive reliability, producing energy for LED lights even in the wet.
The idea behind this product was to take advantage of the optimal location which the bicycle has to offer, from a dynamo drive point of view: The VELOGICAL Dynamo rotates 20x faster than a hub dynamo, so it can be made correspondingly smaller and lighter. It rolls almost silently, turbine-style, on the rim. Using the latest magnetic materials, the VELOGICAL Dynamo delivers the very best test results, both in the lab and in practice (assuming it's fitted correctly of course). Efficiency levels are on average around 70%, and at 30km/h higher than 70% - at 6volts and 3watts. With the VELOGICAL Dynamo, weighing a featherweight 75g(!), you also save on the effort required to compensate for the approx of a heavy hub dynamo or the extra weight of powerful battery lights.
And don't forget: with a side-running dynamo, when not being used it can be disengaged entirely, while a slow and ever-turning hub dynamo is always operating, slowing you with its magnetic drag: a constant effect, even when the lights are switched off.
The VELOGICAL Dynamo is not only highly energy efficient, but also universal compatible and retro-fittable. Cycle aesthetes and sports riders who want to appreciate the benefits of this next-generation dynamo-powered cycle lighting system can, it goes without saying, keep their carefully-selected high-tech wheelsets intact without replacing the front hub for a hub dynamo.
In the course of researching the product it became clear that the famous French constructeurs (such as Herse, Singer, Daudon) had already investigated rim dynamos in the early 1950s on their touring bikes, using various types of drive wheel. In 1980s, mountain bikers also investigated this system, because of the rough profile of off-road tyres and because heavy battery lights would not stay secure on the handlebars for long, especially over rough terrain. For battery lights, the mounting was the Achilles' heel.
Overall, these earlier experiments with rim dynamos did not perform as well as was desired, because the fundamental problem of frictional resistance at high riding speeds had not been solved. To resolve this problem (high speed drag), simply moving the contact point from the tyre to the rim is not sufficient. Only a complete revision of the side-runner principle can achieve this, as demonstrated by the product shown here.
Dynamo design: VELOGICAL engineering GmbH Dipl. Ing. Peter Frieden
Dynamo series production: VELOGICAL engineering GmbH
Distictive Marks
RIM-DYNAMO (mini generator LED
lighting): engraved Logo VELOGICAL on the top, onesided
mounting
VELOSPEEDER
(mini standard motor):
four hexagon socket screws on the top, double-sided
mounting
Contact us: team@velogical.eu
Test Ride: +49
(0)177 7820849
© VELOGICAL engineering GmbH