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PASS QUEST-SPRILL

SHIMANO BOOST (3mm offset) Round Narrow Wide Chainring

SHIMANO BOOST (3mm offset) Round Narrow Wide Chainring

$42.00 USD
$42.00 USD
Sale Sold out
SIZE
Model 28T or 30T or 32T or 34T or 36T or 38T
Colour Black or Silver
Made from 7075-T651 Aluminum Alloy
Surface coating Anodizing
Made with CNC milling
Chainring shape Round
Compatible cranksets Shimano -Direct Mount (XTR M9100/9120/9125/9130、XT M8100/8120/8130、SLX M7100/7120/7130、Deore M6100/6120/6130、MT900、MT610)
Weight, grams  47 (28T), 56 (30T), 59 (32T), 61 (34T), 73 (36T)，77 (38T),
Offset, mm 3mm
Chain compatibility Standard or 9/10/11/12 speed 
 Bicycle shop or dealer contact customer service
 

             PASS QUEST NARROW WIDE CHAINRING

  • Our tooth height achieved 8.5 mm, Increased tooth height improves chain retention 
  • Manufactured using 7075-T651 highly durable aluminum alloy
  • The chamfering design can reduce the weight of the gear plate and make the gear plate more beautiful

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Which size of an oval should I choose

We always recommend swapping like for like, so if you have a 32T round ring at the moment, you should consider getting a 32T oval. The same applies to our shiftable road ovals, we recommend that you purchase ovals with the same teeth count as your round rings.

How to calculate gear inches for an oval chainring

Exactly same way as for round chainring. You just need to use the nominal size in the calculation of an oval ring you have. That is, if you buy 32T oval you use for calculation 32T size. Reason for this is 32T oval chainring has same circumference as the 32T round. We optimize the shape but not circumference - it stays constant. Distance between each teeth always has to remain at 12.7mm to engage the chain properly. You can use any online calculator to get gear inches for an oval chainring.