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The rear MTB Boost hub for XC, All Mountain, Enduro, and e-bikes features a Boost 12x148 mm axle, a 6-bolt disc mount, and 32 holes.
Detailed DescriptionThe rear MTB Boost hub for XC, All Mountain, Enduro, and e-bikes features a Boost 12x148 mm axle, a 6-bolt disc mount, and 32 holes.
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More informationSome parts of this page are translated automatically, so please excuse any imperfections.
When you need your rear wheel to hold its line and transfer power without unnecessary losses, hub quality is what makes the difference. The Javax rear Boost hub M121B gives the wheel confidence on steep climbs and at speed on descents. It’s the kind of component you can rely on even after long miles in dust and mud.
Sealed industrial bearings ensure smooth running and consistent performance for everyday riding as well as more demanding terrain. You’ll appreciate the reduced sensitivity to dirt and the wheel’s consistent rotation.
The rear axle in the 12x148 mm Boost standard helps stiffen the bike’s rear end and supports more precise tracking. You’ll notice it most under disc braking and in fast sections.
Steel freehub rotors add resistance against gouging from the cassette cogs. It’s ideal if you swap cassettes often or ride under high loads..
The hub’s technical designation is M121B for rear MTB use.
The brake rotor mount is Disc 6-bolt with six bolts.
The spoke hole count is 32 holes with J-bend flanges for bent spoke heads.
The weight is 364 g in the Sram XD version, 380 g in the Micro Spline version, and 382 g in the Shimano HG Anti-bite version.
Javax M121B is a rear hub for building a durable MTB wheelset where you want the solid Boost standard and reliable operation. The glossy black finish looks clean and matches most components. The package includes the hub with Boost end caps, without the thru-axle from the frame.
EAN: JBFLYVL
M121B
XC, All Mountain, Enduro, E-bike
Sealed industrial cartridge bearings
J-bend (bent spoke heads), 32 holes
Glossy black
Hub with Boost end caps, without thru axle
Shimano MTB HG 9-12speed
32 Holes
Rear 12x148 mm Boost
INTL - 6 screws
Shimano HG9
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Für Versand nach Deutschland, besuchen Sie bitte Javax hintere Boost Nabe M121B Disc 6 Loch 32 Loch Shimano 12x148 mm
Für Versand nach Österreich, besuchen Sie bitte Javax hintere Boost Nabe M121B Disc 6 Loch 32 Loch Shimano 12x148 mm
Chcesz dostarczyć towar do Polski? Sprawdź Javax tylny Boost piasta M121B Disc 6 otworów 32 otwory Shimano 12x148 mm
Chcete doručit zboží do České republiky? Prohlédněte si Javax zadní Boost náboj M121B Disc 6 děr 32 děr Shimano 12x148 mm
Chcete doručiť tovar na Slovensko? Pozrite si Javax zadný Boost náboj M121B Disc 6 dier 32 dier Shimano 12x148 mm
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