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

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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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Minoura
ISM seats
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O.Symetric
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ReSkin Sport
Rotor
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- QXL
Shift Up
Speedplay pedals
Smurt
Stryd
Synofit
Power Meters
Triathlon en reparatie standaards
TRP Tektro remsystems
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Wahoo
- Bike Equipment
- Heart Rate Monitors
- Kickr
- accessories
- Informatie over Wahoo
Xplova
Sale
BSX insight
Chainrings
- Oval chainrings
  - Rotor
    - Road
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    - Beach
  - O.Symetric
    - Road
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    - Cyclocross
- Round chainrings
  - Road
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Cranks
- Rotor race/triathlon
  - Compact
  - Double
- Rotor MTB
  - Singlespeed
  - Double
- Powermeter
  - Road/triathlon
  - MTB
- Crank spareparts
- O.Symetric
Bikeseats
- ISM seats
  - Citybike
  - Trekkingbike
  - Roadbike
  - Triathlon
  - MTB
- Essax Duopower
- Easyseat
- Seatposts and more
- Other saddles
Powermeters
- Avio powermeters
- 4iiii powermeters
- Favero Assioma Powermeters
- Powerpod powermeter
- Rotor powermeters
- Stryd powermeter running
- Spareparts powermeters
Navigation
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Brakes
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Care
Helmets
- Casco helmets
- Accessoires
Diverse
- Divers Wahoo Fitness
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- Spareparts Rotor
- Sportswear
- Food
- Wheels
  - Spareparts
- Saddle fastening
- Sale
- Divers
Best sellers

New products

All new products

Specials

iBike Newton+ Pro Tinkoff Edition powermeter

iBike Newton+ Pro Tinkoff Edition...

€ 330,30 € 784,30

All specials

€ 70,21 In stock

Casco Roadster helmet color: 'Olive'

Casco Roadster Olive, this urban bike helmet can be used versatile! The helmet has a comfortable fit and features an anti-insect net.Available with and without visor

€ 70,21

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In stock
€ 247,89 Out of stock

PowerPod V3 powermeter (ANT+ and Bluetooth)

Why bother it when it is easy? The PowerPod V3, quick, easy and a cheap powermeter on the market! With 12 years of continuous improvement, there is the PowerPod V3 for you!

€ 247,89

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Out of stock
€ 70,21 In stock

Casco Roadster helmet and visor color: Noir

Casco Roadster helmet and visor color: Noir

€ 70,21

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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
€ 949,59 shipped in 1-3 days

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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shipped in 1-3 days
€ 537,15 on stock

Rotor MTB and Road Powermeter INspider

Power meter bicycle from Rotor. The Rotor INspider. The power meter of the moment! Direct mount, Already have a ALDHU, Vegast or KAPIC? Just replace the spider for the INspider!

€ 537,15

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on stock
€ 289,25 Out of stock

Wahoo Fitness ELEMNT ROAM Bike Computer

The Wahoo ELEMNT ROAM is the new bike computer 4.0! It has ANT+ and bluetooth 4.0. Connect with every BTE and ANT+ device and you'll have your info on a nice full-colour 2.7" GorillaGlass screen

€ 289,25

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Out of stock
€ 180,99 Out of stock

Wahoo Fitness ELEMNT Bolt Stealth Bike...

One of the bike computer of the elemnt series, a great addition to the bike with extra aerodynamics!

€ 180,99

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Out of 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
€ 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
€ 367,77 In stock

Favero Assioma UNO Power Meter (2021)

Assioma UNO Cycling power meter with power sensor on the left pedal. The single-sidedpower meter pedals with upgrade option.

€ 367,77

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In stock
€ 321,49 Available mid-April. Order now to put yourself on the waiting list.

Xplova NOZA ONE Semi-Smart Trainer

The best choice for an entry-level indoor bicycle trainer!

€ 321,49

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Available mid-April. Order now to put yourself on the waiting list.
€ 60,00 In stock

Synofit Premium Dietary Supplements

€ 60,00

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In stock
€ 574,38 In stock

Favero Assioma DUO Power Meter (2021)

The Favero Assioma Duo Power Meter. Power meter with sensors on both pedals. The best choice to take full advantage of the real dual-sided measurement.

€ 574,38

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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
€ 185,91 Out of stock

PowerPod Lite V3 powermeter (ANT+)

Why bother it when it is easy? The PowerPod Lite, quick, easy and a cheap powermeter on the market! With 12 years of continuous improvement, there is the PowerPod V3 for you!

€ 185,91

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Out of stock

No new products at this time.

€ 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%

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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