T47A-DUB suporte inferior da bicicleta 77-83mm estrada mtb 28.99mm manivela movimento central cerâmico apto para sram dub bicicleta acessórios rosca
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Specifications
- Brand Name
- KACTUS TECH
- High-concerned chemical
- None
- Origin
- Mainland China
- Material
- Aluminum/Alloy
- Model Number
- T47A-DUB
- Use
- Road Bicycles
- Type
- Bicycle Bottom Brackets
- Brand
- Kactus Tech
- Name
- Ceramic Bottom Brackets
- Fit Bicycle
- Both MTB and Road Bicycle Frame
- Bearing
- Ceramic Bearing
- Ceramic Beads
- G3 Silicon Nitride
- Five-way Width
- 77mm-83mm
- Thread
- M47*1
- Crank Axis
- 28.99mmX28.99mm
- Fit for
- Factor Sram etc 28.99mm Cranksets
- Weight
- about 103g
Product Description
Model Number:T47A-DUB (77-83mm)↓↓↓
Color: Black
Material: Aluminum Alloy,Ceramic Palin
Weight : About 103g(Weight does not include accessories)
Shell width: 77mm~83mm
Applicable Axis: φ28.99mm*φ28.99mm
Thread: M47*1
Fit for : Fit for SRAM dub crankset and other brand of crankset with
shaft diameter 28.99mm.
1.Ceramic bearings are installed in cups.
2.High quality G3 silicon nitride ceramic beads and hardened-steel races.
3.G3 Silicon nitride ceramic beads ,it highlights the higher strength and impact
resistance characteristics of Si3N4, making it better than metal bearings, Secondly,
their better wear resistance and heat resistance,light weight and smoothness,
making the cranksets smoother during rotation. Be loved and recommended by
cycling enthusiasts.
4.Low operating noise.
Bottom Parts
Lightweight aluminum alloy is not easily deformed.
Light-weight Design
The shell is made of high-strength aluminum alloy material, integrally formed, and
anodized, which increases the hardness and wear resistance of the product and
extends the service life of the product.
Product Packaging
Note: Due to different batches, the factory will replace the outer packaging of
the product, please refer to the actual receipt!
Pros & Cons
Pros
- Rolamentos cerâmicos para baixa fricção
- Leve apenas 103g
- Compatível SRAM DUB e similares
- Ajuste 77-83mm versátil
Cons
- Instalação requer ferramentas específicas
- Sem acessórios inclusos
- Preço premium por cerâmica
- Envio demorado
Common Questions
Material do suporte inferior T47A-DUB?
Alumínio/liga com rolamentos cerâmicos G3 nitreto de silício.
Larguras compatíveis 77-83mm?
Sim, shell width 77-83mm, eixo 28.99mm para SRAM DUB.
Compatível com MTB e estrada?
Sim, para quadros road/MTB com rosca M47*1.
Como instalar o movimento central cerâmico?
Encaixe eixo 28.99mm, peso 103g leve e durável.
Tempo de entrega para acessórios bike?
Da China, 15-30 dias, inclui sem acessórios extras.
Product information last updated on March 24, 2026