Tune Micro B6 MTB Hub

The new disc rear hub for mountain bikes from Tune, the Micro B6 hubs with Boost 12x148mm thru-axle mount. Tune has completely redesigned the hubs, featuring new freehub bodies, axles, hub flanges and ball bearings. What remains is the minimal weight and reliability.

Tune Micro Boost 6B rear bike hub specifications and dimensions:

• Intended use: Mountain bike, Enduro, Downhill
• Axle: Aluminium
• Hub body: CNC-machined aluminium
• Colour: choice of silver, black or red
• Seal: double-sealed
• For crossed lacing only
• Bearings: EnduroBearings
• Flange spacing (left): 35.5 mm
• Flange spacing (right): 22 mm
• Left flange diameter: 55.5 mm
• Flange diameter (right): 55.5 mm
• Spoke hole diameter: 2.4 mm
• Disc standard: IS Disc 6-hole
• Boost mounting dimension: 12x148 mm for 12x148 mm thru-axle installation, not convertible
• POEtry 138 aluminium freehub body:
  • Microspline freehub compatible with Shimano 12-speed Microspline cassettes
• Max rider weight: 100 kg
• Max. system weight: 115 kg
• Weight: approx. 242 grams

Tune Micro Boost 6B

At first glance, you might think that the Micro hub is a revised version of the KillHill model. In fact, however, it is a completely new design, conceived from scratch and featuring numerous useful improvements.

The new Tune hubs no longer require washers for axial play adjustment, making them significantly more user-friendly and easier to maintain. Furthermore, Enduro Bearings has been chosen as the main supplier for hub bearings, and all hubs are fitted with new seals, ensuring they are not only lightweight but also incredibly durable.
The Micro consists of a one-piece, CNC-machined aluminium body and two deep-groove ball bearings. The Micro hub is the perfect introduction to the world of lightweight hubs from Tune. Don’t be fooled by its status as an entry-level model: the Micro hub is a true performance marvel. Weighing just 349g (+/- 3%, for the set), it is not only extremely light but, thanks to its classic J-bend flanges, also extremely stable and therefore versatile, even off-road.

Whether on a road bike or a gravel bike, the Micro Hub is the perfect companion for all your adventures, after-work rides or town sign sprints. Naturally, this hub set is also handmade in Germany.

Tune hub bearings:

Two types of ball bearings are available, both from Enduro Bearings: as standard, the Enduro Bearings ABEC5. These high-quality ball bearings offer reliable performance for a wide range of applications. They are characterised by their precision and durability and are an excellent choice for riders who value quality. The Ceramic XD-15 ball bearings. These ceramic hybrid ball bearings are renowned for their exceptional smoothness and durability. The Enduro Bearings XD15 ceramic hybrid bearings come with a lifetime guarantee, making them the ultimate choice for riders who refuse to compromise on performance and reliability. Ideal for use in the most demanding

Enduro Bearings ABEC 5 ball bearings:

Enduro’s ABEC-5 ball bearings feature mirror-smooth polished raceways made from a high-carbon chrome alloy (52100), paired with grade 10 balls. Enduro designs all radial bearings with deeper grooves to accommodate the largest possible balls, enabling maximum contact area and a significantly longer bearing life. The LLU/LLB seal combination on these bearings, developed specifically for bicycle applications, uses a protective grey LLU seal facing outwards towards the elements to reduce contamination from water or dirt, whilst the lighter (lower sealing resistance) black LLB seals, which face inwards, keep the 90% filled Mobil XHP 222 high-pressure grease where it belongs.

Your choice of wheel with the Tune hub

Ask us for a personalised quote. We’ll build your dream wheel, perfectly trued by hand. Choose your preferred rim from the full range of DT Swiss, e*thirteen, Mavic, Stans NoTubes and WTB rims. We use exclusively DT Swiss spokes. Over the last few decades – ever since we started building wheels – these spokes have proven themselves to be by far the most durable.

Herstellerinformation: Tune, Im Mittelfeld 18, 79426 Buggingen, Germany, https://www.tune.de