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PASS QUEST-SPRILL

PASS QUEST White Industry Special Spider Modified Parts 30 Series Square Hole Crank Folding Bike

PASS QUEST White Industry Special Spider Modified Parts 30 Series Square Hole Crank Folding Bike

Regular price $65.00 USD
Regular price Sale price $65.00 USD
Sale Sold out
size
 
BRAND PASS QUEST
APPLICABLE series 30 cranks/square taper cranks
MATERIAL 7075-T651
BCD 130BCD  ( 1X chainring Only)
ORIGIN CHINA
CRANK 4mm
WEIGHT square taper(68g),  30 series(62.5g)

 Bicycle shop or dealer contact customer service

130BCD is only suitable for 1X narrow wide chainring

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                          PASS QUEST SPIDER

  • The appearance of the claw is hollow, round, stardesign,to provide you with three shape choices, theclaw adopts a special design, so that the transitionbetween the claw and the tooth disc smooth, andsupport double disc, the claw uses aluminumCNCmillingand chamfering, to ensure the strength of thepremise to reduce the weight of the claw.
  • This 5-arm, 130BCD crank spider is designed specifically for White Industries cranks; in its engineering, we incorporated a significant offset and reinforced the mounting points to further enhance durability.
  • Anodized Surface: 7075 aluminum alloy is difficult to anode.For this reason,we through many product proofing.Upgrade sandblasting anode to matte anode.Upgrade sandblasting anode to matte anode.More beautiful texture.
  • Countersunk Structure:Maximize the contant area between the screw and the gear plate. Simpler installation effect. Effectively reduce abnormal noise.
  • Alignment Mark: The chainring spider features an alignment point; during installation, this point should be positioned directly behind the crank arm.
  • 130BCD specification; chainring bolts included.
    The bolts are precision-machined from a single block of AL7075-T651 alloy via CNC processing. These are 9mm extended bolts designed for double chainrings, effectively preventing loosening and minimizing unwanted noise.
  • 110BCD spiders do not include mounting bolts.
  • Locking torque: 6-8 N·M

    Excessive torque may damage the screw.

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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.