Best I Sy Fahrrad 2026

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Last Updated - 27.03.2026

Best Choice

01

Kattfix

Kattfix E-Bike Battery Lock for i:SY Bicycles, E-Bike Battery Anti-Theft Device (Battery Capacity 545 Wh)

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Secure hold on the frame
Secure e-bike battery theft protection for the compact bike i:SY
Safe yet lightweight: weighs less than 300 g
SUSTAINABLE & REPAIRABLE: made recyclable
Includes 2 keys for opening the lock
From domestic production: Made in Münster
Easy to install: quick and easy to install
Durable: made of hardened stainless steel
Available on request for other e-bike models
Available for many other models on request

199,90 €
Value for Money

02

ISE

ISE Recumbent Ergometer with Magnetic Brake, Transport Wheels, Pulse Sensors, LCD Display, 8 Adjustable Resistance Levels, Exercise Bike, Recumbent Bike / Exercise Bike for Seniors, Home Trainer

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11% Off
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

TOP COST EFFICIENCY - No unnecessary functions, just core value: We deliberately do not use absolutely necessary app connection functions to reduce costs and focus the investment on the essentials: quiet magnetic system, comfortable fit and precise resistance. So we offer you an affordable ergometer for seniors - a practical reclining bicycle exercise bike for everyone. No complex operation, no additional subscriptions - just get started, combines practicality and economy.
Super comfort + stability + easy movement: the magnetic braking system of this reclining ergometer for seniors is quiet and low maintenance - a decisive advantage for families and users with joint problems. Adjustable pedals with non-slip foot bands, non-slip floor-friendly feet and the half-reclined position ensure maximum comfort and stability. With integrated transport wheels, you can move this reclining bicycle exercise bike quickly and easily.
Multifunctional full body training: Optimise your fitness training with this reclining ergometer - a versatile seated ergometer and reclining bicycle exercise bike in one. With targeted exercises for the lower limbs and unparalleled comfort, it meets the needs of different groups of people: whether professional fitness experts, beginners or users looking for a reclining ergometer for seniors. As a premium recumbent ergometer and practical exercise bike alternatively, it is perfect for recovery, rehabilitation or intensive training - ideal as an ergometer seniors for gentle full body muscle building and fat burning.
Multifunctional display with pulse measurement: the display of the ergometer seniors shows all important training data (speed, time, distance, calories, pulse, scan mode) at a glance. The integrated heart rate monitor in the handles allows real-time monitoring of heart rate, so you can safely control the intensity of your workout and achieve optimal results - a perfect reclining ergometer for everyone.
Compact size + 8-level resistance: this recumbent ergometer (136/55/93 cm L/W/H) is ideal for home as an addition to the exercise bike bicycle. It offers 8-level progressive magnetic resistance control (1-2 for warm-up, 3-4 for aerobics, 5-6 for muscle building, 7-8 for high intensity training), a 6 kg flywheel (≤45 dB) for quiet training and seat adjustment for body sizes from 150-185 cm. The tablet stand provides fun and entertainment during exercise.

151,99 € 169,99 €(11% Off off)
03

i:SY

I:SY I:SY V.R.-Transportgep cktr ge

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

I:SY V.R. transport pannier rack, diameter 16 mm, steel tube, steel, for attaching to the control head with 4-point mount (distance: 10 cm), matte black. Without mounting screws, suitable for all i:SY bicycles, max. Load capacity: 12 kg I:SY V.R. transport pannier rack, diameter 16 mm, steel tube, steel, for attaching to the control head with 4-point mount (distance: 10 cm), matte black without mounting screws, suitable for all i:SY bicycles

95,00 €
04

i:SY

I:SY ISY Bicycle Saddle Bag for Bicycle Lock, Accessories - Bicycle Seat Bag

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Water-repellent material
The saddle bag offers the perfect storage space for bicycle locks, chains, accessories or even for keys and wallets.
Original i:SY bicycle saddle bag
Easy to install: with fastening straps, these saddle bags can be easily and stably attached to the bicycle seat.

27,95 €
05

i:SY

i:SY ISY Backpack 2.0 with Klickfix Adapter, Bicycle Backpack, Bicycle Bag, Handlebar Bag

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Waterproof backpack with removable inner compartment and practical side pocket accessible without having to put the backpack down.
The straps and back padding are breathable.
The i:SY logo and the side stripes are elegant unobtrusive during the day but highly reflective in the dark.
Thanks to the integrated adapter, it can also be attached to the i:SY Klickfix front carrier and i:SY front carrier 2.0
High-quality 500D nylon TPU material with a total volume of 25 litres
Dimensions: 51 x 30 x 12 cm

119,95 €
06

i:SY

ISY Front Carrier 2.0 Aluminium, Bicycle Pannier Rack Black, ISY Accessories

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With integrated MonkeyLoad-T and KLICKfix mount.
Specially designed for the i:SY frame generation 2.0 (SKYFLY and P12) and compatible with all i:SY.
Net weight: 730g
Allows you to securely and cleverly attach various i:SY bags and baskets.

99,95 €
07

I:SY

I:SY RSHA-4520-SY Bicycle Document Bag

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Size: DIN A5
Outer dimensions: approx. 23.5 x 17.5 cm

14,99 €
08

i:SY

MonkeyLoad-T Adapter Plate for Bicycle Pannier Rack Black

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Thanks to its innovative construction, the MonkeyLoad-T pannier rack system makes cycling life easy in everyday life and on tours.
Screws and washers for attaching bags or baskets are not included in the box contents
Removing it is as easy as installing: unlock, pull the locking mechanism forward briefly with two fingers, and
One click and pockets, baskets and other accessories sit firmly on the pannier rack. Just lock and everything is secured.
No tedious assembly and positioning - snap, lock and you're done!

29,95 €
09

i:SY

ISY Chain for Bicycle Frame Lock - Bicycle Lock 130 cm - Orange

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The insert chain from ISY fits any frame lock from the Abus brand.
The chain attaches to the frame lock and allows you to secure your bike or e-bike to a fixed object.
The Abus plug-in chain from ISY with 130 cm length offers excellent protection.
Scratch protection: plastic coating protects against scratches and paint damage
Connection chain for frame locks, adaptor chain 6KS/130 = length 130 cm (1.3 metres), weight 1140 g, thickness 6 mm

36,95 €
10

Wheeloo

Wheeloo Bosch Kiox 300 Protective Case, Screen Protector for Ebike, Transparent and Water-Repellent, E Bike Screen Protection Accessories

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Waterproof and scratch-proof – the display case prevents scratches in the glass and allows rainwater to simply bead off. It also absorbs shocks if your bike computer falls down.
Perfect fit for a secure hold – all edges of the Bosch Kiox display are tightly enclosed for a perfect fit. This provides a secure hold even in strong winds
Full operability – you can press all buttons as usual and the USB port is also free to charge the smartphone.
From e-bike specialists – Wheeloo has been a well-known brand for e-bike accessories for many years. More than 200,000 customers have already chosen Wheeloo
100% transparent – the UV-resistant TPU material is crystal clear and the display is easy to read. No discoloration of the case even after long time use.

10,90 €