90429 · Case
Soft Case
Soft case with sun visor, transparent screen window and charging cable opening.
Phone up to 85 × 170 mm. Also check thickness and camera protrusion.
€33,26View product ↗
Manufacturer information ↗MOTOVEIKALS 21 · BUYING GUIDE
Your phone.
Your ride.
Optiline.
Find a case for your phone and a mounting point on your motorcycle. Build a DuoLock kit or choose a complete LAMPA holder.
Build your kitLAMPA · OPTILINE
DuoLockCase + mount.
One connection system.
One connection system.
01
START WITH YOUR PHONE
Two ways to find your holder.
For a DuoLock kit, choose a case or adhesive adapter and a separate mount. Complete holders already include a mount.
Measure your phone.
If you keep your everyday case, measure the phone with it fitted. Dimensions help narrow down the options; also check thickness, buttons and the camera bump.
Not sure of the dimensions? Compare the limits below and choose manually.Choose a case or adapter
90543 · Case
Sized XL
Slim case with rain-resistant zips. Inserts help adjust it to the phone's thickness.
Phone up to 90 × 175 mm.
€27,90View product ↗
Manufacturer information ↗
90540 · Case
Hard Case
Rigid case with transparent screen cover and cable opening.
Phone up to 78 × 165 mm.
€44,90View product ↗
Manufacturer information ↗
90541 · Case
Sized M
Compact case for a small phone. Measure your device before choosing.
Phone up to 70 × 145 mm.
€27,90View product ↗
Manufacturer information ↗
90426 · Adapter
Universal adapter
Attach to a suitable rigid case. The surface must be smooth, non-porous, flat or slightly curved.
Check the case material and follow the adhesive instructions. Do not attach to a soft, porous or textured surface.
€12,30View product ↗
Manufacturer information ↗A complete kit in one product
We will not add an extra DuoLock mount to the cart for these options.
91570 · Complete kit
Smart Scooter Flow
Open phone holder with a mirror or windscreen support mount. Safety lanyard included.
Phone height 130–190 mm; round mounting stem Ø 9–14 mm.
€39,00View product ↗
Manufacturer information ↗
72537 · Complete kit
Smart Handlebar Grip
Open holder with handlebar mount. Leaves the charging port accessible; safety lanyard included.
Phone width 62–82 mm; handlebar Ø 15–40 mm.
€24,99View product ↗
Manufacturer information ↗02
CHECK YOUR MOTORCYCLE
Where will you mount your phone?
Measure the chosen location. The phone must not restrict steering movement or obscure the instruments.
90452 · Mount
Handle
A simple reinforced-plastic mount. Choose a case or adapter separately.
Handlebar diameter Ø 16–32 mm.
€18,95View product ↗
Manufacturer information ↗
91598 · Mount
U Type Pro
Metal mount with clamp and inserts. Check clearance around the controls.
Handlebar diameter Ø 22–28 mm.
€32,00View product ↗
Manufacturer information ↗
90438 · Mount
Mirror
Mount for a round mirror stem or crossbar.
Stem or tube diameter Ø 9–14 mm.
€24,20View product ↗
Manufacturer information ↗
90450 · Mount
Opti-Screw M6
Designed for a suitable M6 bolt mounting point. Check the thread, length and surrounding clearance.
M6 mounting. Follow the motorcycle and holder instructions during installation.
€24,85View product ↗
Manufacturer information ↗
90436 · Mount
Opti-Screw M8
Designed for a suitable M8 bolt mounting point. A similar bolt head alone is not enough.
M8 mounting. Check the thread and bolt length.
€27,50View product ↗
Manufacturer information ↗
90458 · Mount
Opti-Tube 17–20,5
Mount for an open steering stem tube. Check its shape, depth and clearance around the opening.
Opening internal diameter Ø 17–20.5 mm. This model has a 17 mm ball joint.
€33,50View product ↗
Manufacturer information ↗03
BEFORE YOU SET OFF
Think about the camera and charging too.
A rubberised joint is not a separate vibration damper.
Optiline damper 91808 is designed for Titan mounts and 19 mm balls. It must not be added automatically to every DuoLock holder: for example, the Opti-Tube 90458 included here has a 17 mm ball.
We did not find 91808 in the store range we checked, so we have not included it in the kit. To help protect your phone's camera stabilisation, we can check your mount version and damper availability.
Ask about a damper ↗A cable opening does not mean wireless charging.
The holders selected for this guide do not include a wireless charger. Wired charging requires a suitable motorcycle USB power supply, a phone cable and safe cable routing.
Leave room for the plug inside an enclosed case. Watch the phone's temperature in sunlight; charging inside an enclosure can increase heat. Choose electrical connections and moisture protection suitable for your motorcycle.
QUICK ANSWERS
Make your choice clear.
If you are unsure, send us your phone's dimensions and a photo of the mounting point. We can help at Raiņa iela 16, Jelgava.
Do I need an iPhone- or Samsung-specific case?+
The cases in this selection are universal. Choose by your phone's actual dimensions, not just the brand or screen diagonal.
Does Optiline connect to Quad Lock?+
This guide combines only verified Optiline DuoLock cases and mounts. Quad Lock uses a different connection system, so do not add its parts to this kit.
Will the case protect against all rain?+
The selected cases offer rain protection, but this is not a promise of protection when submerged or in all conditions. Close the zips, follow the instructions and make sure the cable does not obstruct the closure.
Do I need to buy a safety lanyard too?+
Several selected cases and complete holders already include one. Check the specific product's contents and use the supplied lanyard as instructed.
Manufacturer sources and checks
Product selection checked on 16.10.2026. Each card links to the manufacturer's information for that model. If the dimensions on the product packaging differ, contact the store before purchasing.
