KONG Boost - 214 gram
Optional Ceramicspeed Upgrade, click here
The King Boost front hub with 110mm hub spacing and Kong Boost rear hub with 148mm hub spacing differs in some fundamental points from the hubs with 100mm and 135/ 142mm hub spacing. When X-12 rear stays were introduced only the hub spacing was increased, the geometry of the hub (flange distance and bearing support points) stayed uninfluenced. The Boost standard allows a complete adaptation of the hubs with wider hub bodys and axles. A conversion of current hubs to the Boost standard is therefore not possible. However, the new standard offers some advantages:
The flange distance increases for both hubs. Thereby stiffer wheelsets can be build, especially noticeable for 29er. One point of critics for bigger wheels was the poor stiffens. By the bigger hub spacing of the Boost standard it is possible to realise 29er wheels that are on a level field with wheels!
The bearing support points can be wider and therefore be constructed stiffer and more stable.
Certainly the topic weight plays a big role in our development, here the King Boost & Kong Boost only bring 121g & 214g on to the scale!
Tune uses special bearings which are like that not available on the market! The bearings identify themselves through a special grease and a higher filling degree. Besides o fit they are double abradant sealed and maintenancfree.
The disc hub are for 6 holes/IS2000, not Centerlock.
Kong boost for Evo6
The Syntace Evo6 standard bases, as the Boost standard, on 148 mm hub spacing. The Evo6 technology uses an asymmetrical rear end. The right sided flange and cassette move 6 mm outwards. Compared to 142 mm the right flange remains in position. With Boost the hub size got increases by 3 mm in both directions.
The hub itself is therefore a “normal” Kong Boost. Please mention that the wheel is used in a Evo6 frame when ordering. The wheel will be centered 3 mm towards the left.
It sounds strange but it is true.
Specs KONG BOOST
- Body & freewheel: aluminium
- Axle: aluminium, Ø 17 mm
- Pawl & Toothing: titanium TiAI6V4
- Production methods: CNC -machined one-piece body and freewheel body, anodized and lasered
- Number of holes: 28/ 32
- Brake disc support: IS 2000
- Hub spacing: 148 mm
- Bearing: 4 deep-groove ball bearings3 x 61803, 1 x 61903
- Sealing: double contact seals
- Clamping method: Thru-axle
- Hole Ø: 55,5 mm
- Flange distance: (l/r) 36,3/24,1 mm
- Freewheel: 11-speed Shimano/ SRAM, 10-speed Shimano/ SRAM, XD SRAM, Campagnolo