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SHIMANO ULTEGRA FC-R8100 12-Speed Chainring 12速齒片

Price range: HK$ 87 through HK$ 625

描述

SHIMANO ULTEGRA FC-R8100 十二速齒片

產品概述

SHIMANO ULTEGRA FC-R8100 齒片是 ULTEGRA R8100 2×12 速公路曲柄組的專用替換齒片,同時兼容 FC-R8100-P 功率計版本 。外片採用 HOLLOWGLIDE 中空技術,以鋁合金配合碳纖維增強複合材料(CFRP)製成,在減輕重量的同時維持高剛性,提升動力傳輸效率與前變速的速度和精準度 

主要特點

HOLLOWGLIDE 中空外齒片
外片以中空結構製成,重量輕且強度高,帶來更佳的動力傳輸性能,以及更快速、更精準的前變速體驗 

鋁合金 + CFRP 複合材質
50T 及 52T 外片採用鋁合金與碳纖維增強塑料(CFRP)複合材質;34T 及 36T 內片為陽極氧化鋁合金 

精準配對設計
齒片有特定 Type 編碼(NK / NH),必須同類型配對使用以確保最佳變速性能 

技術規格

項目 規格
系列 ULTEGRA R8100
變速別 2×12 速
BCD 110 mm,4 臂
兼容鏈條 HG 12 速
齒盤組合 46-36T、50-34T、52-36T 
材質(外片) 鋁合金 / CFRP(50-52T)、鋁合金(46T)
材質(內片) 陽極氧化鋁合金 
表面處理 陽極氧化

可選齒數

齒數 位置 搭配組合 Type 編碼
34T 內片 50T NK 
36T 內片 52T / 46T NH 
46T 外片 36T
50T 外片 34T
52T 外片 36T

相容性

  • 曲柄:ULTEGRA FC-R8100、FC-R8100-P(功率計版本)

  • Chain Line:44.5 mm 

備註

  • 齒片必須同 Type 編碼配對使用(如 NK 只能配 NK),否則可能影響變速性能 

  • 外片與內片分開銷售,購買前請確認所需位置及齒數。

  • 安裝需使用曲柄固定螺絲,部分型號隨附。


Product Overview

The SHIMANO ULTEGRA FC-R8100 chainring is a replacement ring for the ULTEGRA R8100 2×12-speed road crankset, also compatible with the FC-R8100-P power meter version . The outer ring uses HOLLOWGLIDE hollow construction with an aluminium-CFRP composite, reducing weight while maintaining high stiffness for efficient power transfer and fast, precise front shifting .

Key Features

HOLLOWGLIDE Hollow Outer Chainring
The hollow-constructed outer ring is lightweight yet strong, delivering better power transfer and faster, more precise front shifting .

Aluminium + CFRP Composite
50T and 52T outer rings use aluminium with carbon fiber reinforced plastic (CFRP); 34T and 36T inner rings are anodized aluminium .

Precision Pairing
Chainrings have specific Type codes (NK / NH) and must be paired with the same type for optimal shifting performance .

Technical Specifications

Item Specification
Series ULTEGRA R8100
Speeds 2×12-speed
BCD 110 mm, 4-arm
Compatible Chain HG 12-speed
Chainring Combos 46-36T, 50-34T, 52-36T 
Material (Outer) Aluminium / CFRP (50-52T), Aluminium (46T) 
Material (Inner) Anodized Aluminium 
Finish Anodized

Available Teeth

Teeth Position Pairing Type Code
34T Inner 50T NK 
36T Inner 52T / 46T NH 
46T Outer 36T
50T Outer 34T
52T Outer 36T

Compatibility

  • Cranks: ULTEGRA FC-R8100, FC-R8100-P (power meter version) 

  • Chain Line: 44.5 mm 

Notes

  • Chainrings must be paired with the same Type code (e.g., NK only with NK); mixed pairing may affect shifting performance .

  • Outer and inner rings are sold separately; confirm position and teeth before purchase.

  • Installation requires crank fixing screws, included with some models.

額外資訊

重量 0.00 公克
尺寸 0.00 × 0.00 × 0.00 公分
Chainring teeth

34t, 36t, 50t, 52t

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搶先評價 “SHIMANO ULTEGRA FC-R8100 12-Speed Chainring 12速齒片”

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