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your price $6.79
Buy PART NUM 138972
- Fits double and triple chainring cranksets
- Set of 5 chainring bolts
- Type: Double/Triple
- Size: M8x8mm Bolt / M8x7mm Nut
- Material: Steel
- Color: Chrome

Origin8 Double Chainring Bolts, Chrome, M8x8mm Bolt - M8x7mm Nut your price $6.79
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Customer reviews of this product:




Excellent bolts, but an FYI
by TedB of Columbus, OH on June 21, 2021
Product:
Origin8 Double Chainring Bolts, Chrome, M8x8mm Bolt - M8x7mm Nut
Ownership: one week
Tech Knowledge: average
Pros
Appear to be of good quality. Nice, shiny chrome finish.
Cons
None noted (except for FYI below)
Other Thoughts
Just an FYI that if you are using these on a 5-bolt crank arm where one of the bolt holes is in line with the crank arm, check how much clearance you have to fit the nut in. These 7mm nuts were too long on the crank arm that I was working on. I fortunately had some spare 4mm nuts that worked; 5 mm would have worked, too.
I was working on a triple-ring mountain bike crank arm, but noticed that the single-ring timing chain cranks on our tandem would have the same issue.




Work great, solid and secure
by D W on August 16, 2020
Product:
Origin8 Double Chainring Bolts, Chrome, M8x8mm Bolt - M8x7mm Nut
Ownership: a month
Tech Knowledge: average
Replaced original chainring bolts on a vintage trek with these. Perfect fit, very secure, eliminated drivetrain groaning caused by old original parts.
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