Browsing Chains & Guides

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4-Jeri Chains
4-Jeri Gang Chain
2 choices
4-Jeri Chain Tensioners
4-Jeri SS Chain Tensioner
  • Convert any vertical dropout frame with derailleur hanger to a Singlespeed
  • Spring loaded arm keeps tension on chain, pulley axle adjusts to optimize chainline
  • Chain retention hoop prevents chain derailment
item # color weight in stock?
  JE-6521 black 100g NO
Absolute Black Chain Guides
ACS Chains
B-Labs Chain Tensioners
Blackspire Chain Tensioners
Blackspire Chain Guides