Workshop

- With Maxx Seal 2026, Maxxis is launching its first-ever in-house tubeless sealant for gravel, road and (e-)MTB tyres.  
- With a synthetic latex base, it is effective from -20 °C to +55 °C, is designed to seal punctures up to 7 mm and does not clump.  
- Ammonia-free, tyre-friendly formula; compatible with CO₂ and inserts; sold in recycled PET bottles and 5-litre canisters.

Maxxis launches tubeless sealant: an end to punctures thanks to Maxx Seal?

- Tyres that are stuck on the rim are caused by unsuitable tyre-rim combinations, sub-optimal rim tapes and, in some cases, rim designs that do not comply with ETRTO standards.
- To remedy this: Press the bead into the rim seat, using a vice or tyre levers if necessary, and use several sturdy plastic tyre levers.
- Schwalbe refers to ETRTO standards and criticises non-compliant rim dimensions; the affected rim designs have since been revised by the manufacturer.

Workshop help: Tyre is stuck – what should I do?

- MGUs combine the motor, gearbox and gearshift; advantages: less maintenance, better weight distribution, smooth gear changes, but greater weight and higher costs.  
- Gobao and Avinox are presenting new MGU models at Eurobike; according to Peter Denk, Chinese manufacturers have a slight edge over their German counterparts in this respect.  
- Experts see great potential, but emphasise that MGUs must prove themselves against traditional mid-drive derailleurs in terms of efficiency, weight and practicality.

Eurobike innovation: The next big thing? Will we all soon be riding bikes with motor-gearbox units?

​Rex Transformer Block: Waxing a bicycle chain without degreasing it

Amazon Prime Day on two wheels: the hottest bike deals

- At the Bike Festival Riva, awards will be presented in the categories Innovation, Sustainability and Gravel; the winners will be announced on 1 May.  
- The festival includes numerous mountain bike manufacturers with test bikes, an MTB marathon, an e-MTB challenge and other challenges.  
- Mountain bikes, accessories and the growing gravel trend will be presented in the exhibition areas; all award contenders can be seen in a picture gallery.

Bike Festival Awards 2026: These products are in the final of Riva

CARE | LUBRICANTS

- Torque spanner with 2-24 Nm, ISO-6789-certified, finely adjustable in 0.1 Nm increments via handle with locking ring.
- Scope of delivery: Hexagon bits H3, H4, H5, H6, H8, H10, Torx T10, T20, T25, T30, extension and long H4 bit.
- 1/4-inch connection, special long 4-mm bit for brake callipers that are difficult to access, price 69.95 euros (RRP), steel material.

Zéfal Z Torque Wrench: New torque spanner for the bike workshop

- SKS Germany is launching the Tom (8-22 functions) and Mia (8/12 functions) multitool series, which are manufactured in Germany.  
- Tom is flat, robust and tour-orientated; depending on the version with hexagon socket, Torx, screwdrivers and chain riveters on the 22.  
- Mia is slimmer, lighter and focussed on essential bits; the 12-function version offers a chain tool and is aimed at sporty riders.

SKS Multitools Tom & Mia: Practical tools for travelling - made in Germany

- Seven essential tools enable independent MTB maintenance: assembly stand, torque spanner, Allen/Torx key, Bowden cable cutter, cassette tools.
- Also important: chain riveters, wear gauges and centring stands for drive and wheel maintenance as well as precise repairs at home.
- Quality instead of cheap tools prevents damage; most tasks can be carried out with basic tools and the specialist shop can help with any problems.

Screwdriver bliss: 7 tools that belong in your home workshop

TOOLS

Mountain bike bottom bracket standards: an overview of the utter chaos

- The new Shimano Deore M7200/M6200 offers greater durability, more precise shifting and improved ergonomics in the mid-range price segment.  
- Redesigned rear derailleur with Shadow ES and dual-spring system increases chain stability by 70%; new brakes utilise XT/XTR technology.  
- Deore remains mechanical, offering 11- and 12-speed options; a typical complete bike configuration costs €379.75 and is closing the performance gap with the top tier.

New Shimano Deore groupset: even more robust, even more precise

- Editor Jan Timmermann builds one of the first 32-inch mountain bikes, the Leovelo Goliath, with exclusive tuning and standard parts.
- He solders the steel frame himself, helps laminate the carbon wheels and visits the fork manufacturer before all the parts are assembled.
- The build is emotionally charged; every detail is carefully chosen and reminds him of the elaborate do-it-yourself creation story.

Project Goliath: 32-inch hardtail in the Dreambuild

CIRCUIT | DRIVE

- Since 2013, Wolf Tooth has grown from a basement project to a manufacturer with 3500 m² headquarters, over 60 employees and a broad component portfolio.  
- The brand develops practical, detail-focussed solutions "by bikers for bikers" and manufactures the majority of its products using CNC in Minnesota.  
- Wolf Tooth focuses on tight tolerances, repairability, long service life and local production, but struggles with high material costs and customs duties.

A look behind the scenes at Wolf Tooth: bike parts made in the USA

- Shorter 155 mm cranks improve stance, control, centre of gravity and braking traction, especially downhill on E-MTBs and gravity bikes.  
- The more compact position facilitates low heels, more stable handling in high-speed and shock moments as well as controlled pedalling in technical terrain.  
- The disadvantage is less leverage when pedalling, which can be partially compensated for by a smaller chainring (32 to 28 teeth in the test), for example.

155 mm vs. 170 mm: Short cranks in the test - what they bring to mountain biking

- TRP Evo Pro scores top marks for usability and modulation, offers strong braking power and wins the test.
- Lever feel is sensitive, intuitive and easy to adjust; constant pressure points and robust lever geometry are convincing in practical use.
- In the laboratory, the braking force of 80 N is on a par with the best, reaches a maximum of 963 N and passes all heat and wet tests.

Must-have: The TRP Evo Pro wins the disc brake comparison test

- Piccola HD combines extremely low weight (213 g, test best value) with high braking power, but does without comfort features such as tool-free adjustment.  
- In the laboratory, it performs well with practical hand forces, but loses out with higher lever input and does not achieve top marks.  
- In the practical test, it impressed with vehement braking power, but a soft pressure point and an irritatingly springy lever feel under full load.

Trickstuff Piccola HD on test: This lightweight brake bites mercilessly!

- Air bubbles in the hydraulic system make the pressure point spongy, increase the lever travel and reduce braking performance to a safety-critical level.  
- Air penetrates when the system is opened, through leaks, temperature fluctuations and brake fading and gradually collects in the system.  
- Professional bleeding with suitable tools, original oil, correct caliper alignment and regular checks ensures reliable braking performance.

Air in the brake line: Bleeding the disc brake - why it's so important

BRAKES

Classic fixie: Surly brings back the legendary Steamroller

- Zéfal Universal Cage Mount is a universal, screwless mount for bottle cages and accessories on almost any bike tube.
- Attachment with silicone-coated Velcro tape and padding, suitable for tube diameters from 27.2 to 80 mm, including mounting screws.
- Standard hole spacing of 64 mm enables compatibility with bottle cages, tool cages, pumps, bags and locks on MTB, gravel and e-bikes.

Zéfal Universal Cage Mount: Finally space for your water bottle

- The Leovelo Goliath is a 32-inch steel hardtail with an upside-down fork, carbon monocoque wheels and a total weight of 11.52 kg.  
- Specialised manufacturers such as Intend, Vecnum, Bike Ahead, Maxxis, Sram and Wolftooth are involved in the construction, in some cases with specially adapted lightweight parts.  
- The focus is on early 32-inch players and brands with transparent, local production that fit in well with the do-it-yourself character of the project.

32-inch steel hardtail with 11.5 kilos: Leovelo Goliath in the bike check

FRAME

- Black Diamond is launching the updated ‘F26 Lighting’ headlamp range on 1 September 2026, featuring increased brightness, USB-C connectivity and recycled materials.  
- The flagship model is the Megawatt Headlamp with 3,000 lumens, a GoPro-compatible helmet mount and a wireless remote switch for cycling, trail running and ski touring.  
- An external 50.32 Wh battery offers up to 4 hours’ runtime, a power bank function via USB-C, an LCD remaining runtime display and an IP67-certified housing, priced at 300 euros.

Black Diamond Megawatt: A super-bright head torch for cyclists

Supernova Starstream: Mini Scheinwerfer, maximale Lichtausbeute

- The range features 14 different transport and packing solutions for cycling, from bikepacking systems to functional clothing.
- The focus is on low weight, high water resistance, secure fastening and additional features such as integrated lights or hydration systems.
- The products cover a range of applications: handlebars, saddles, frames, clothing, rucksack systems, camping and organisation solutions.

You’re all set: 14 bikepacking solutions for gravel and MTB

BIKE LIGHT

Insta360 Luna Ultra: Gimbal camera with Leica lenses and an 8K sensor

- Canyon Predict is an AI-based road bike concept featuring 360° sensors, a handlebar display and an optional AR helmet for early hazard warning.
- Edge AI processes camera, radar and ride data locally, eliminates blind spots and enables predictive risk analysis as well as interventions such as lowering the saddle.
- The system is currently only a prototype; its suitability for everyday use, costs, benefits and acceptance remain to be seen, and the main danger posed by motorised vehicles persists.

Canyon Predict road bike: How AI is set to make cycling safer

- Shokz has launched the OpenDots 2 and OpenDots Air, clip-on open-ear headphones that leave the ear canal unobstructed
- OpenDots 2 feature JointArc technology, Bassphere 2.0 and Dolby Audio; the Air version is lighter and offers up to 36 hours of battery life
- Listening to music whilst cycling is permitted, but may impair your ability to react; open-ear systems are considered safer than isolating in-ear headphones

Listening to music whilst cycling: Keep your ears free: Shokz launches new open-ear earbuds

BIKE COMPUTER

- On two occasions within a few months, tubeless valves broke during group rides, presumably due to sticks getting caught in the spokes.
- In both cases, the only solution was to: loosen one side of the tyre, wipe out the sealant, insert the inner tube, fit the tyre and pump it up.
- The author is considering carrying a spare tubeless valve for trips, but continues to rely on an emergency inner tube for everyday use and is asking others about their experiences.

Broken tubeless valve: When the tyre is flat but you can’t find a puncture

- Muc-Off AirMach Electric Inflator Pro Max: 356 g, 600 mAh battery, up to 8.3 bar, charges in 1 hour via USB-C, compatible with standard valve types.  
- One charge is enough for 8 road bike tyres, 7 gravel bike tyres or 6 MTB tyres, making it equally suitable for road bikes, gravel bikes and mountain bikes.  
- LED display showing pressure and battery level, memory function, automatic pressure calibration, silicone case, long hose and adaptor; price to be confirmed.

Muc-Off Mini Compressor: Longer battery life, more power

- In June, long days for gravel tours are emphasised and various discounts on bikes and accessories are highlighted.  
- Reduced offers include Tubolito tubes, Conti Terra Speed tyres, Topeak pumps and saddlebags.  
- Heavily discounted gravel bikes (Rose Backroad AL, Cervélo Áspero) and POC Cytal MIPS helmet for selected sizes on sale.

Gravel Bikes & Parts: June Bargains – for gravel heroes and those who want to become one!

PUMPS

- Shimano is introducing 2.2 mm brake discs for trail, enduro, gravity and e-MTB use, offering greater stiffness and improved heat resistance.  
- The thicker rotors are designed to reduce fade, provide a more stable bite point, reduce vibrations and deliver more consistent braking performance on long descents.  
- The discs are designed for modern Shimano brakes; the 200 mm diameter replaces the 203 mm version and simplifies compatibility without the need for additional spacers.

Finally, more braking power: Shimano unveils 2.2 mm brake discs

- Zéfal Z Cage Adapter moves bottle cage on the bike by up to 40 mm and makes better use of narrow frame space.
- 132 mm long bar made of glass fibre reinforced technopolymer, black, weight 22 g, dimensions 17 × 10 × 132 mm.
- Supplied with screws (2× M5×10, 2× M5×16), RRP 9.95 euros, suitable for everyday use, touring and bikepacking.

Flexible bottle cage: Adjustable Zéfal Z Cage adapter saves space in the frame

- Larger brake discs increase the braking force via a longer lever arm and improve thermal management and fading resistance thanks to a larger friction surface.  
- 140 mm and 160 mm are only suitable for light riders, short or flat terrain; they are undersized for touring, long descents and heavier weights.  
- 180 mm is the trail standard as a compromise, while 203 mm offers maximum braking power and heat stability for >85 kg, E-MTB and long descents.

Small, large or huge: Which brake disc do I need?

TUNING

Workshop tips, tricks and instructions for screwing on the bike ✅ Tools for repairs in the home workshop ✅ Test reports

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MTB workshop: Tips, tricks, instructions & test reports | BIKE

Maxxis launches tubeless sealantAn end to punctures thanks to Maxx Seal?

Workshop helpTyre is stuck – what should I do?

Eurobike innovationThe next big thing? Will we all soon be riding bikes with motor-gearbox units?

CARE | LUBRICANTS

​Rex Transformer BlockWaxing a bicycle chain without degreasing it

Amazon Prime Day on two wheelsThe hottest bike deals

Bike Festival Awards 2026These products are in the final of Riva

TOOLS

Zéfal Z Torque WrenchNew torque spanner for the bike workshop

SKS Multitools Tom & MiaPractical tools for travelling - made in Germany

Screwdriver bliss7 tools that belong in your home workshop

CIRCUIT | DRIVE

Mountain bike bottom bracket standardsAn overview of the utter chaos

New Shimano Deore groupsetEven more robust, even more precise

Project Goliath32-inch hardtail in the Dreambuild

A look behind the scenes at Wolf ToothBike parts made in the USA

155 mm vs. 170 mmShort cranks in the test - what they bring to mountain biking

BRAKES

Must-haveThe TRP Evo Pro wins the disc brake comparison test

Trickstuff Piccola HD on testThis lightweight brake bites mercilessly!

Air in the brake lineBleeding the disc brake - why it's so important

FRAME

Classic fixieSurly brings back the legendary Steamroller

Zéfal Universal Cage MountFinally space for your water bottle

32-inch steel hardtail with 11.5 kilosLeovelo Goliath in the bike check

BIKE LIGHT

Black Diamond MegawattA super-bright head torch for cyclists

Supernova StarstreamMini Scheinwerfer, maximale Lichtausbeute

You’re all set14 bikepacking solutions for gravel and MTB

BIKE COMPUTER

Insta360 Luna UltraGimbal camera with Leica lenses and an 8K sensor

Canyon Predict road bikeHow AI is set to make cycling safer

Listening to music whilst cyclingKeep your ears free: Shokz launches new open-ear earbuds

PUMPS

Broken tubeless valveWhen the tyre is flat but you can’t find a puncture

Muc-Off Mini CompressorLonger battery life, more power

Gravel Bikes & PartsJune Bargains – for gravel heroes and those who want to become one!

TUNING

Finally, more braking powerShimano unveils 2.2 mm brake discs

Flexible bottle cageAdjustable Zéfal Z Cage adapter saves space in the frame

Small, large or hugeWhich brake disc do I need?

Maxxis launches tubeless sealant
An end to punctures thanks to Maxx Seal?

Workshop help
Tyre is stuck – what should I do?

Eurobike innovation
The next big thing? Will we all soon be riding bikes with motor-gearbox units?

Rex Transformer Block
Waxing a bicycle chain without degreasing it

Amazon Prime Day on two wheels
The hottest bike deals

Bike Festival Awards 2026
These products are in the final of Riva

Zéfal Z Torque Wrench
New torque spanner for the bike workshop

SKS Multitools Tom & Mia
Practical tools for travelling - made in Germany

Screwdriver bliss
7 tools that belong in your home workshop

Mountain bike bottom bracket standards
An overview of the utter chaos

New Shimano Deore groupset
Even more robust, even more precise

Project Goliath
32-inch hardtail in the Dreambuild

A look behind the scenes at Wolf Tooth
Bike parts made in the USA

155 mm vs. 170 mm
Short cranks in the test - what they bring to mountain biking

Must-have
The TRP Evo Pro wins the disc brake comparison test

Trickstuff Piccola HD on test
This lightweight brake bites mercilessly!

Air in the brake line
Bleeding the disc brake - why it's so important

Classic fixie
Surly brings back the legendary Steamroller

Zéfal Universal Cage Mount
Finally space for your water bottle

32-inch steel hardtail with 11.5 kilos
Leovelo Goliath in the bike check

Black Diamond Megawatt
A super-bright head torch for cyclists

Supernova Starstream
Mini Scheinwerfer, maximale Lichtausbeute

You’re all set
14 bikepacking solutions for gravel and MTB

Insta360 Luna Ultra
Gimbal camera with Leica lenses and an 8K sensor

Canyon Predict road bike
How AI is set to make cycling safer

Listening to music whilst cycling
Keep your ears free: Shokz launches new open-ear earbuds

Broken tubeless valve
When the tyre is flat but you can’t find a puncture

Muc-Off Mini Compressor
Longer battery life, more power

Gravel Bikes & Parts
June Bargains – for gravel heroes and those who want to become one!

Finally, more braking power
Shimano unveils 2.2 mm brake discs

Flexible bottle cage
Adjustable Zéfal Z Cage adapter saves space in the frame

Small, large or huge
Which brake disc do I need?