VELOGICAL RIM DYNAMO

Smooth Running – Lightweight – Efficient

The VELOGICAL RIM 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 and year-round cyclists.

VELOGICAL DYNAMO
AT A GLANCE

Extremely smooth running (drag below the perception threshold)
Minimal weight and miniature form factor ∅ 75g (depending on the bracket)
Extremely high efficiency
Latest materials technology and high power rare earth magnets
Preservative use of raw materials
Disengageable (by folding away)
Retrofittable and universally compatible
Optimised contact surfaces, rainproof lighting 
For LED lights with metal cooling surface (40 lux and more)

Technical Data DYNAMO

Dynamo type: RIM DYNAMO / new side-running concept
Over-current protection with LED front lights: see light selection and recommendations.
Weight (DYNAMO only): 62g
Weight (DYNAMO with bracket): 70-90g
Depending on bracket type
Efficiency at 30kph (18.6mph): more than 60%
Efficiency at over 30kph (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.
German certification: With german certification according StVZO

Brake Boss Fitting

Brake boss adapter “left fitting” (in the direction of travel)

Priority front wheel
Option: rear right fitting by reverse installation (against the direction of travel)
!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 “front right fitting”, “rear left fitting” (in the direction of travel)

Priority front wheel
Option: rear left fitting by reverse installation (against the direction of travel)
 
  •  !Center-center brake boss 80mm (current version since about 2000)
  • Fitting on the right (front) or left (rear)
  • For rim brakes as described for bracket version left side
  • 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

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.

 

Tube adapter short 10-20mm “left fitting”
(in the direction of travel)

Priority rear wheel
Option: right fitting by reverse installation (against the direction of travel)
  • For 10-20mm 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 the rim flank)

Tube adapter medium 20-32mm “left fitting” (in the direction of travel)

Priority rear wheel
Option: right fitting by reverse installation (against the direction of travel)
  • 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 the rim flank)

 

Tube adapter medium 20-32mm “right fitting” (in the direction of travel)

Priority front wheel
Option: left fitting by reverse installation (against the direction of travel)
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 the rim flank)

 

Tube adapter long 32-46mm “left fitting”
Suspension fork, dip tube (in the direction of travel)

Priority front wheel
Option: right fitting by reverse installation (against the direction of travel)
necessary e.g. with rim brakes (type caliper, road bike)
  • 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 (30mm below the rim flank)

 

Tube adapter long 28-42mm “left fitting”
Rigid fork on sports bike (in the direction of travel)

Priority front wheel
Option: right fitting by reverse installation (against the direction of travel)
necessary e.g. with rim brakes (type caliper, road bike)
  • For 28-42mm 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 OVAL (30mm below the rim flank)

Fitting the VELOGICAL DYNAMO on Brompton Folding Bikes

Special clamp adapter for Brompton folding bike
“Right fitting reverse” (against the direction of travel)
  • Minimum adjustment
  • Front installation reverse to fork clamp right side
    Choose version “steel fork”
    OR
    Choose version “titanium fork”
    ATTENTION!
    Both versions are NOT compatible to each other!

DYNAMO Gallery

Recommended LED Bike Lights, Version Dynamo, Alternating Current / AC

LED FRONT LIGHTS, 40 LUX AND MORE, METAL COOLING SURFACE OR METAL HOUSING

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
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-Scheinwerfer
All specifications are subject to technical change

LED TAILLIGHTS

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+Müller)
“µ”, 
Installation: seat post, seat stay, mud guard
SECULA PLUS,
 Installation: seat post, seat tube, seat stay
SECULA PLUS, 
Installation: mud guard (fender)
SECULITE PLUS ,
Installation: seat post, seat tube, seat stay
LINE
LINE SMALL
MINI
FLAT S
TOPLIGHT (and others)
, Installation: rear rack
PHILIPS
SafeRide LED Rearlight (version dynamo), 
Installation: rear rack
SafeRide Lightring (version dynamo), 
Installation: seat post
SON /SCHMIDT MASCHINENBAU
Rearlight, 
Installation: mud guard (fender), seat post, rear rack
SUPERNOVA
E3 Tail Light
, Installation: seatpost, seat tube, rear rack
( only in combination with SUPERNOVA Head Lights)
All specifications are subject to technical change

UNIVERSAL CONNECTION OF LED LIGHTS

In combination with the additional overvoltage protector SHIMANO “SM-DH10A”, additionally to the overcurrent protector VELOGICAL thermistor every LED Bikelight can be used.
All specifications are subject to technical change

EXPERT INFORMATION

Simple Requirements for the VELOGICAL DYNAMO

Powerful LED front lights from 40 lux and more with metal cooling surface or metal housing. 
Light installation with VELOGICAL thermistor (overcurrent protection).
In combination with the additional overvoltage protector SHIMANO “SM-DH10A”, additionally to the VELOGICAL thermistor every LED bikelight can be used.

Suitable headlights 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.

Fitting to special bikes and unusual cases

For framebuilders & professionals
Check feasibility first

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

In the box

– 1 Dynamo, type selected when ordering

– 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;

Tube adapter short 10-20mm Ø frame tube attachment;

Tube adapter medium 20-32mm Ø frame tube attachment;

Tube adapter 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)

All specifications are subject to technical change.

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 !

 

Certification, StVZO Regulations and Design Interpretation

VELOGICAL obtains a StVZO approval according german law regulation 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.

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 including 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)

Charging Mobile Devices

Charger for VELOGICAL RIM DYNAMOS
Models Trekking, Sport (version for alternating current / AC):
Busch + Müller E-Werk + cache battery

VELOGICAL ON-BOARD POWER SUPPLY (Energy System 2-Part)
USB charger & lamp control function + special generator:
UNIVERSAL POWER SOURCE & 3-PHASE GENERATOR
Alternative 
Version UNIVERSAL POWER SOURCE for hub dynamos
(Not recommended for VELOGICAL RIM DYNAMOS)

How the VELOGICAL RIM DYNAMO works

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. 

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.