Shimano RD-TX800 Tourney Rear Derailleur - 7/8 Speed
ERDTX800SGSL
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Description
SHIMANO TOURNEY - Rear Derailleur - 7/8-speed
Available in black and silver, the SHIMANO TOURNEY TX800 derailleur is compatible with 8-speed SIS Index Shifting.
Feature
- 8-speed drive train
- Durable light action shifting performance for stress free riding
- Double Servo-panta mechanism
- Quick assembly
- Allen key type inner cable fixing bolt
- 13T/13T pulley
- Total capacity 43T
- Color options: Black, Silver
Technology
SIS Rear Index Shifting System
The system constituents such as the index mechanism built in the shifting lever, the frictionless SIS rear index shifting cable and the smooth action rear derailleur realize the SHIMANO INDEX SYSTEM.
Double Servo
SHIMANO’s double servo-panta mechanism enables the rear derailleur to move in an optimum path.
The guide pulley tracks the cogs closely while moving front to back, optimizing each shift. Perfect tracking contributes to the most accurate SIS shifting.
Keeps rear derailleur guide pulley an optimum distance from each sprocket.
HG Sprockets
The distinctively designed HYPERGLIDE sprockets incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result.
The HG cassette sprocket, which was developed for the MTB 10-speed system, underwent comprehensive optimization to achieve super-highly efficient shifting.
Specification
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Pulley cage
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SGS
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Rear speeds
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8/7
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Compatible chain
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HG 8/7-speed
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Top-Normal spring type
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Double servo
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✔
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Mount
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Direct attachment (Conventional)
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✔
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Cable adjuster
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✔
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Max. front difference
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20T
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Total capacity
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43T
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Low sprocket
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Max.
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34T
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Min.
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28T
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Top sprocket
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Max.
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14T
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Min.
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11T
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Pulley
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Teeth | 13/13T | |
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Bolts material
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Steel
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B-Axle
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Material
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Stainless steel
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Bracket body
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Material
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Resin
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Finish
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Painted
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P-Axle
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Material
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Steel
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Finish
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Zinc plated
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Plate body
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Material
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Resin
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Outer link
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Material
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Steel
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Finish
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Painted
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Inner link
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Material
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Steel
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Finish
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Zinc plated
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Outer plate
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Material
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Steel
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Finish
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Painted
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Inner plate
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Material
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Steel
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Finish
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Zinc plated
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Cable fixing Bolt
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Material
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Steel
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Finish
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Zinc plated
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Stroke Adjusting Screw
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Material
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Steel
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Finish
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Zinc plated
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