SONIX CX4 — Designer — Duratec

SONIX CX4
close

The most popular groupsets

Recommended groupset Price incl. tax Weight
RockShox Recon SRAM X5 2x10sp Fulcrum Ritchey Comp 45 571 Kč 10690g

Konfigurujete pouze rám. Pro Vaši lepší představu Vám zobrazujeme celé kolo.

OK

SONIX CX4

27.5er

BIKE PRICE
from 45 571 Kč
with groupset
RockShox Recon SRAM X5 2x10sp Fulcrum Ritchey Comp

Color

Frame color (matt) Stickers (glossy) Frame colour Logo colour Frame colour Big stripe colour Small wave colour Logo colour Frame colour Colour - front part Colour - stripes Logo colour front Logo colour rear Fork color Colour of saddle Base Frame Loading
  • Design

  • MATT & GLOSS MATT & GLOSS

    Frame color (matt)

    • 1501 White
    • 1502 Black
    • 1503 Cream White
    • 1504 Light Silver
    • 1505 Classic Silver
    • 1506 Titan Grey
    • 1507 Anthrazit Grey
    • 1508 Light Bronze
    • 1509 Dark Bronze
    • 1510 Gold
    • 1511 Classic Yellow
    • 1512 Green-Yellow
    • 1513 Spring Green
    • 1514 Freddy Blue
    • 1515 Light Blue
    • 1516 Dark Blue
    • 1517 Pure Orange
    • 1518 Pink
    • 1519 Raspberry Red
    • 1520 Red

    Stickers (glossy)

    • Eclipse Black
  • Mono Mono

    Frame colour

    • Arctic White
    • Attractive Green
    • Eclipse Black
    • Dark Blue
    • Fire Red
    • Light Blue
    • Classic Yellow
    • Melon Yellow
    • Orange
    • Light Pink
    • 1504 Light Silver
    • 1505 Classic Silver
    • 1506 Titan Grey
    • 1507 Anthrazit Grey

    Logo colour

    • CA171 White
    • CA172 Black
    • CA174 Titan Grey
  • Across Across

    Frame colour

    • Arctic White
    • Attractive Green
    • Eclipse Black
    • Dark Blue
    • Fire Red
    • Light Blue
    • Classic Yellow
    • Melon Yellow
    • Orange
    • Light Pink

    Big stripe colour

    • Arctic White
    • Attractive Green
    • Eclipse Black
    • Dark Blue
    • Fire Red
    • Light Blue
    • Classic Yellow
    • Melon Yellow
    • Orange
    • Light Pink

    Small wave colour

    • White
    • Green
    • Black
    • Red

    Logo colour

    • White
    • Green
    • Black
    • Dark Blue
    • Red
    • Light Blue
    • Classic Yellow
    • Melon Yellow
    • Orange
    • Light Pink
  • Fork color

    • White
    • Black
  • Colour of saddle

    • White
    • Black
  • Logo on frame

    Choose your logo

Extra charge paintjob:
Inclusive

Extra charge logo: 0 Kč

  • Change background

    • Dark
    • Light
Share on FB Download

Favouriter designs:

Frame size

Basic Rider parameters

The smallest possible body height is 148cm The greatest possible body height is 210cm
The smallest possible weight is 40 kg The smallest possible weight is 40 kg The greatest possible weight is 150 kg The greatest possible weight is 150 kg

Rider profile

Describe yourself as a rider. This helps us with recommendations on appropriate components and setting a sitting position.

Ambition

Health: You do not cycle for sport, but you love being out in nature and discover new things.

Hobby: Cycling means leisure to you. You do cycle to enjoy nature and keep yourself fit.

Sport: You do cycling for sport. When you are on the bike, you want to train yourself and compete with your friends.

Race: You are training seriously on your bike and sometimes compete at marathons and other races.

Professional: You want to win races at a high level, so being fast is the most important to you.

Experience

You are just starting to discover cycling for yourself.

You are just starting to discover cycling for yourself, but you do other sports on a regular basis.

You started cycling one or two years ago, and last year you did about 2000 km on your bike.

You spend lots of your time one you bike, which adds up to around 5000 km a year.

You have been cycling seriously for a long time and do 10 000 or more km a year.

Velikost rámu je nestandardní, musíme Vám vyrobit rám na míru. Budeme Vás kontaktovat

OK
VR
cm
VR
inch
VP
cm
A1
mm
A2
mm
B2
mm
C1
mm
C2
mm
D
mm
F
mm
G
mm
H
mm
K
mm
L
mm
O
mm
R
mm
S
mm
α
deg
β
deg
40 15,7 157 - 161 561 546 400 428 431 298 115 640 1066 42 85,3 756 394 584 69,5 74,0
42 16,5 162 - 166 575 557 420 428 431 298 115 654 1080 42 85,3 766 408 584 69,5 74,0
44 17,3 167 - 171 586 566 440 428 431 298 115 660 1086 42 82,0 777 418 586 70,0 74,0
46 18,1 172 - 176 595 573 460 428 431 298 115 663 1089 42 82,0 786 421 586 70,0 73,5
48 18,9 177 - 181 608 585 480 428 431 298 125 671 1097 42 78,7 802 431 597 70,5 73,5
50 19,7 182 - 186 620 595 500 428 431 298 135 678 1104 42 78,7 816 434 607 70,5 73,0
52 20,5 187 - 191 633 609 520 428 431 298 145 691 1118 42 78,7 830 445 616 70,5 73,0
54 21,3 192 - 196 645 621 540 428 431 298 155 704 1130 42 78,7 844 454 626 70,5 73,0

 

Dimension

Summary

Thank you for your interest in a customised bicycle built by us.

You can now either SAVE AS PDF which you can print out for yourself or you can. START AGAIN if you feel that the configuration needs to be changed. EMAIL US to allow us to look over your configuration and we can advise by calling you direct. ADD TO BASKET will confirm your order with us and we will contact you by telephone to confirm. Payment is made at the time of order. Thank you

Price for complete bike 0 Kč

Weight 1380g

Save as PDF Start again Email Us Add to basket You must have selected the size of the frame and components to continue.

X

Your demand

Complete the following items so we can contact you back.

 
 

SONIX CX4 27.5er

The Sonix CX4-27.5" bike is suitable for cross-country and marathon races. It has a very dynamic appearance and attracts significant attention in the peloton. The frame has no superfluous brazed-ons, and the Bowden cables are concealed inside the frame. It has a purely racing geometry, complemented by the fact that upon request we can customise this model for sets with a single chainring.

Own production allows us to optimise the geometry of the frame and riding position on the bike so that it corresponds with the proportions of the cyclist. If we fine tune the riding position, not only will the cyclist feel very good from the aspect of ergonomics and high load, but we will also ensure optimum transmission of power for him. You can find out more about measurement here.

Sonix CX4 27,5 & Shimano XT m8000

The frame construction utilises light, large-diameter double-butted tubes, which effectively resist the dynamic strain during a race and offer the cyclist faster reaction and good handling due to their rigidity. The top and bottom tube are shaped in the direction from the head of the frame in such a way that they absorb any dynamic impacts from the front wheel, making the frame even more comfortable. The design of the shape of the rear stays and the bottom and top tubes has a positive influence on the transmission of shocks from wheel to the contact points of the cyclist, i.e., to the seatpost and the handlebars. The technical and innovative construction of the frame offers the user-cyclist excellent value for money. The frame makes a very elegant impression due to the fact that everything is routed internally.

Standard fittings 

fitting bottle cages to the seat and down tube, replaceable hanger for derailleur, seat clamp diameter is 31.8 mm, rear disc brake Int'l Standard, 1 1/8" - 1 1/2” FSA ORBIT IS2 headset

Extra version
preparation for carrier installation, brake disc diameter 203 mm, rear dropouts for Syntace X12 thru axle

Connecting dimensions
geometry of frame adapted to suspension forks 27,5" with travel of 80-100mm, wheel diameter 27,5", max. brake disc diameter 180 mm, fork steerer 1 1/8" - 1 1/2", bottom pull front derailleur, 34,9 mm front derailleur diameter, BSA bottom bracket (width 68 mm), diameter of seat post 27,2 mm

Frame geometry
download the table: male geometry | female geometry

Sonix CX4 benefits

The conical head tube is for bearings 1-1/8"- 1-1/2". The larger diameter of the bearing in the lower part of the head ensures optimal distribution of the flexural moment from the braking force at the fixed point. FSA ORBIT IS2 industrial enclosed bearings are part of each frame.

Tapered headtube Shock eleminator

In the direction from the head, the top and down tubes of the frame are shaped so that in the case of dynamic impacts on the front wheel during races on rough terrain, they better distribute this load and the frame becomes more comfortable, which the cyclist will appreciate during longer rides in particular. The function can be explained as a concertina effect. You can find a more detailed explanation here. The cables for the front and rear derailleur are routed inside the frame. The cables always emerge from the frame directly at the component, i.e., the front and rear derailleur. The hydraulic hose for the rear brake is also routed through the top tube. Thanks to its internal Teflon routing, this model places minimal demands on maintenance.

Duratec frames are hand welded, They do not have a conventional bead shaped by a welding robot, because the weld is performed by hand in several steps. You can find more information about welds and grinding on the technology page. Biaxial S-bend seat stays have a highly specific shape. The dynamic impacts from bumps in the terrain pass via the rear wheel into the rear triangle of the frame to the nodal connection of the seat tube with seat. Thanks to the designed bi-directional profiling of the seat stays, these dynamic forces are distributed and the vertical component of the force negatively impacting ride comfort is lessened.

Handmade welds Rear brake

In the picture the rear wheel is attached by a quick-release. But for an additional charge you can select attachment of the rear wheel on a fixed axle using the patented Syntace X-12 system. This solution significantly increases the rigidity and strength of the frame's rear triangle. It is far stronger than conventional fixing using a quick-release. In the case of a defect changing the wheel is very easy, because the wheel fits in precisely the very first time. If a fixed rear axle is chosen, the rear brake must be attached using the POST MOUNT system.

The Sonix CX4 frame is suitable for a bottom pull front derailleur with diameter 34,9 mm. 

Front derailleur mounting Sandwich System

Atypical design of frame bottom bracket developed in connection with the internal running of the cables. Thanks to the internal Teflon routing, the cables to the rear and front derailleur are routed inside the frame, and thanks to the "sandwich" system of the bottom bracket they neatly bypass it without touching the actual bottom bracket in which the axle is mounted. The internal bottom bracket is a conventional BSA one, 68 mm wide.

During manufacture of the frame we use components precisely milled on CNC machines, such as rear dropouts with stainless steel contact surfaces and removable chain holder.

Rear dropouts Chain grip

The chain holder is screwed onto the inner side of the rear frame  dropout and is a highly valuable aid especially for those who often remove the rear wheel from the frame. Thanks to this clever little gadget, when you remove the wheel the chain will stay on this holder, and you can handle the bike just as you want without having to secure the chain. So, clean hands, secured chain, and the optimum state for transport.