Rosiir | The webshops for all bike saddles, powermeters, chainrings and other cycling needs!

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Brands

4iiii
- 4iiii Precision Powermeter
- 4iiii Smarttrainers
Casco bike helmets
- Casco helmet electric bike
Cirrus Cycle Kinekt Bodyfloat supsension comfort bike gear
Cycling Ceramic
EasySeat
Essax Duopower saddles
Favero Assioma
Fietsgereedschap
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Shift Up
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TRP Tektro remsystems
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Xplova
Sale
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Cranks
- Rotor race/triathlon
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- Other saddles
Powermeters
- Avio powermeters
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Navigation
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Best sellers

New products

Rotor T47 Bottom Bracket Internal Stainless Steel for 30mm Axle

€ 41,31
Tektro HD-M285 Brake Lever

Tektro HD-M285 Brake Lever Left = frontRight = back

€ 33,02
Rotor REX3.2 ATB Crankset Double + QX2 Oval Chainrings

Rotor REX3.2 ATB Crankset Double Rotor crankset REX3.2 ATB double. Top...

€ 318,18
Birzman Carbon anti slip Compound

Birzamn Carbon Control 120ML

€ 23,10
Adjustable Torque Wrench

Adjustable Torque Wrench Adjusteble 4/5 and 6 N/M with hex 3,4,5mm and...

€ 37,15
Birzman Threadless saw guide

Birzman threadless saw guid

€ 23,10

All new products

Specials

Xplova X5 Evo GPS Bike Bomputer with Integrated Action Cam

A revolutionary GPS Cycle computer...

€ 253,91 -23% € 329,75

All specials

€ 66,07 In stock

Wahoo TICKR X Heart Rate Monitor with...

iPhone and Android Workout Motion Activity Monitor / Device Free Workout Tracker / Heart Rate Sensor

€ 66,07

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In stock
€ 660,33 In stock

Wahoo KICKR Core Smart Trainer

The new bike trainer Wahoo KICKR Core! As much Wahoo KICKR as possible for the lowest price possible: The Wahoo KICKR Core!

€ 660,33

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In stock
€ 165,25 On stock

Rotor spiderring Q-ring DM directmount

This spiderring Q-ring is suitable for the new directmount system from Rotor (ALDHU, VEGAST 92)INpower etc.) From one unit, so super light and super stiff!

€ 165,25

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On stock
€ 165,25 In stock

Kinekt Suspension Stem

Kinekt suspension stem.For comfortable rides.

€ 165,25

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In stock
€ 190,07 In stock

Wahoo KICKR Headwind smartfan

The Wahoo Headwind, worlds first smartfan ever! Controlled by speed, hartrate the Wahoo Headwind give the most comfort while riding your indoor-work-out

€ 190,07

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In stock
€ 185,95 In stock

ISM PN4.1 Road Gravel Race Saddle

NEW for 2021! The ISM PN4.1 is the newest offering in the Performance Narrow category of saddles. Same shape as the popular PN4.0, only with increased padding for those looking to soften their ride.

€ 185,95

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In stock
€ 949,59 In stock

Rotor Powermeter 2INpower double sided...

Power meter bicycle from Rotor. The Rotor 2INpower. The power meter of the moment!Direct mount, so opt for loose spider with blades or spider ring. Singlespped or double. Q or NoQ

€ 949,59

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In stock
€ 619,01 In stock

ROTOR INpower DM Road Crankset Kit Powermeter

Rotor Power Pack Road INpower: Powermeter Bundle INpower DM Road with chainrings.

€ 619,01

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In stock
€ 442,93 on stock

AeroPod+ powermeter CdA (Bluetooth & ANT+)

Why bother it when it is easy? The PowerPod, quick, easy and a cheap powermeter on the market! With 12 years of continuous improvement, there is the PowerPod ANT for you!

€ 442,93

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on stock
€ 194,17 In stock

Redshift ShockStop Suspension Seatpost...

Cycling with the BodyFloat seatpost is an experience in itself. An ingenious piece - the springy seat post technology, reinvented!

€ 194,17

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In stock
€ 321,49 In stock

Rotor ALDHU Carbon crank arms

Rotor invented a new system: Rotor ALDHU Carbon in wich you can compose your own crank.Durable, superlight en beautifull.Compose you own crank from 165 mm up to 175 mm.

€ 321,49

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In stock
€ 247,11 On stock

Kinekt Cirrus BodyFloat Kinekt 2.1...

THICKNESS 30.9MM Cycling with the BodyFloat seatpost is an experience in itself. An ingenious piece - the springy seat post technology, reinvented! Available in length of 350mm and 420mm

€ 247,11

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On stock
€ 107,40 In stock

Casco Cuda 2 Bike Helmet Monza Green -...

Leather straps ✅ Stylish ✅Nice visor included ✅ Best choice ✅ #SafetyFirst #GoStylish

€ 107,40

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In stock
€ 314,04 In stock

Wahoo ELEMNT RIVAL GPS Watch Stealth Grey

Introducing... the new Wahoo ELEMNT RIVAL Watch that offers you a seamless performance advantage!

€ 314,04

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In stock
€ 202,48 In stock

ISM PN4.0 Saddle triathlon road

Based on the PN3.0.Experiences showed that some riders needs a 5mm wider saddle to support the sitbones during the ride on roadbike or gravelbike. Comfort like you've never experienced before. Invest in your health!

€ 202,48

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In stock
€ 253,91 € 329,75 -23% In stock
Sale!

Xplova X5 Evo GPS Bike Bomputer with...

A revolutionary GPS Cycle computer with integrated action camera! Explore, Record, Share! X5 Evo — A new way of recording andsharing your cycling experiences

€ 253,91 € 329,75 -23%

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In stock

€ 41,31 In stock
New

Rotor T47 Bottom Bracket Internal...

€ 41,31

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In stock
€ 33,02 In stock
New

Tektro HD-M285 Brake Lever

Tektro HD-M285 Brake Lever Left = frontRight = back

€ 33,02

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In stock
€ 318,18 In stock
New Sale!

Rotor REX3.2 ATB Crankset Double + QX2...

Rotor REX3.2 ATB Crankset Double Rotor crankset REX3.2 ATB double. Top quality, superstiff yet super light. Aluminium crank and a steel shaft. Fits in a 24mm bearing. Choose your chainrings!

€ 318,18

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In stock
€ 23,10 In stock
New

Birzman Carbon anti slip Compound

Birzamn Carbon Control 120ML

€ 23,10

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In stock
€ 37,15 In stock
New Sale!

Adjustable Torque Wrench

Adjustable Torque Wrench Adjusteble 4/5 and 6 N/M with hex 3,4,5mm and T25 Torx

€ 37,15

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In stock
€ 23,10 In stock
New

Birzman Threadless saw guide

Birzman threadless saw guid

€ 23,10

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In stock

€ 330,30 € 784,30 In stock
Sale!

iBike Newton+ Pro Tinkoff Edition powermeter

iBike Newton+ Pro Tinkoff Edition powermeter.Last one. Special offer.

€ 330,30 € 784,30

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In stock
€ 253,91 € 329,75 -23% In stock
Sale!

Xplova X5 Evo GPS Bike Bomputer with...

A revolutionary GPS Cycle computer with integrated action camera! Explore, Record, Share! X5 Evo — A new way of recording andsharing your cycling experiences

€ 253,91 € 329,75 -23%

Add to cart More

In stock
€ 180,54 € 190,04 -5% In stock
Sale!

Stryd Footpod Power Meter

€ 180,54 € 190,04 -5%

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In stock
€ 156,99 € 165,25 -5% In stock
Sale!

TRP EuroX carbon caliper brake cyclocross

TRP EuroX carbon cantilever caliper cyclocross rear&front Super lightweight and super stiff with red accents!Weight 109 grams per wheel. The best you can get!

€ 156,99 € 165,25 -5%

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In stock