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Isaac Boson Disc 105 Di2 28 bike, onyx black

-22%
2,699  -22%
RRP 3,499 
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In-store pickup
Today from 10:00 Check availability
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At MTBIKER Service Point
Available from 30.01.2026 (Friday)
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By courier to your home Express courier delivery GLS
Delivery method on Wednesday 28.01.2026
Do you want to test the bike without any obligation?
Choose personal pickup at the store and decide on the spot.
Additionally you will receive
Bike fitting discount 20 % (you will save 28 €)
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Extended return option up to 100 days More info
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Isaac Boson Disc 105 Di2 bike

The Isaac Boson Disc is a top all-rounder with a carbon frame. It has DT Swiss P1800 wheels, which are strong and durable. The bike was developed for demanding cyclists with racing ambitions who want to be in control of every situation.
The Advanced Carbon Tech Dual 30 frame has low weight and ideal stiffness for competitive performance. With a tensile strength of 30 tons per cm2, it provides a good combination of stiffness and comfort. Another advantage is that it dampens painful impacts from uneven road surfaces. The comfortable geometry makes it an ideal bike for long races, marathons and long rides. It ensures an ergonomic posture, thus preventing neck and back pain. The weight of the frame is 1150 grams in size L.
Level and quality of equipmenthelp
Regular and longer rides

Especially suitable for sports enthusiasts who like to spend time on wheels after work or over the weekend. Suitable for regular riding and training. Usually fitted with components that are the golden middle when it comes to reliability and durability.

Specification
Frame
Isaac Nano Carbon ACT DUAL 30
Fork
Isaac Nano Carbon ACT DUAL 30
Shifting
Shimano 105 Di2 2x12
Regular and longer rides
Derailleur
Shimano 105 Di2 2x12
Regular and longer rides
Front derailleur
Shimano 105 Di2 2x12
Regular and longer rides
Cassette
Shimano 105 11-32T
Regular and longer rides
Crankset
Shimano 105 50/34T (S = 170 mm, M = 172.5 mm, L, XL, XXL = 175 mm)
Regular and longer rides
Brakes
Shimano 105 hydraulic
Sports and performance cycling
Wheels
DT Swiss E1800
Tires
Good Year Eagle Sport 700x28C (max. 32C)
Seat post
Isaac Carbon Aero
Saddle
Syncros
Stem
DEDA SUPERBOX 110 mm
Handlebars
DEDA ZERO2 Alu 420 mm
Bar tape
Syncros Black
Product details
Sex Men, Unisex
Model year 2023
Gears 2x12
Groupset Shimano 105
Size L
Colour black
Material carbon fiber
Wheel material Aluminium
Wheel diameter 700C (28")
Brakes Hydraulic disc brakes
Fork Rigid
Control type electronic
product ID 311492
Bike size XSSMLXL
Height (cm) < 165 cm165 - 172 cm172 - 179 cm179 - 186 cm186 - 195 cm

All bicycles at the MTBIKER shop are new, not-ridden, from an official distributor and with a full warranty. Several brands even offer a lifetime warranty on the frame after registration. We perform all warranty services in MTBIKER stores after personal delivery or after sending the bike (or its part) by courier.

Our bike shipment is as follows:
  1. The bicycle is taken out of the manufacturer's box
  2. The bicycle is assembled, inspected and adjusted (front and rear derailleur, shock, fork, wheels,...)
  3. The bicycle is carefully packed back into a box and shipped
  4. If you order a bicycle for in store pickup or home delivery, the bicycle will be waiting put together, checked and ready to use for you.
  5. If you order a bicycle via courier to your home address, the following must be done at home:
    1. Take the bike out of the box and carefully remove safety material and foils
    2. Mount handlebar to stem (1 minute, 4 or 5 mm hex hey is needed).
    3. Mount front wheel to fork (1 minute, without the need of any tools if the bike has a quick release).
    4. Loosen the screws in the headset, straighten the stem with the front wheel, tighten the upper screw on the fork and then tighten the headset (2 minutes, 4 or 5 mm hex key is needed).
    5. Mount the pedals to the cranks while lubricating the thread and carefully mounting it the right way (1 minute, 8 mm hex key or 15 mm wrench).
    6. Mount seatpost to frame (10 seconds, without needing any tools if the frame has a quick link).
    7. Inflate the tires or fork and shock to desired pressure (2 minutes, pump needed).
    8. Check the tightening of hex keys and quick-releases (2 minutes, 4 and 5 mm hex key is needed).
    9. Go for a test drive! Handle your bicycle carefully until you get used to it. If the bike has disc brakes, their performance will be limited from now on - they will gain their full power after 4-5 strong brakes at higher speed.
Auxiliary video for setting up the bike:
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