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Problem Solvers ChainSpy & ChainSpy2

Marsoni M251S
Sale price$94.00
Pay 4 payments of $23.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Problem Solvers ChainSpy & ChainSpy2PROBLEM SOLVERS CHAINSPY & CHAINSPY2 We offer two chain retention devices to keep an ever watchful eye on your chain while youre looking at whats in front of you. ChainSpy 2 was designed specifically for use with our Direct Mount adapters, so you can use it on any build, from a commuter rig to the fattest of fat bikes. Technical Details Composite Spy with alloy bodies ChainSpy 1 fits 31. 8mm clamps with shims for 28. 6mm tubes ChainSpy 2 fits Problem
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  • We offer a 30-day return/exchange service after receiving.
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4.2 ★★★★★
Based on 340 reviews
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Verified Purchase
Elly
Cuba, US
★★★★★ 5
so helpful
Format: Paperback
got for school and used it a lot its been so helpful
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
E
Verified Purchase
E
Grantham, US
★★★★★ 5
Great price...
Format: Paperback
Needed this for my EKG course. Price was right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
L
Verified Purchase
LUCIOUS
Whiting, US
★★★★★ 5
Satisfied
Format: Paperback, Format: Paperback
Brand new got here on time, haven’t got to indulge in the content yet but definitely exactly what I ordered.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2025
B
Verified Purchase
Breanna Geyer
Lowell, US
★★★★★ 5
EKGs are difficult and I still don’t understand
Format: Paperback
Hey I’m in nursing school and I bought this… it’s not the pocket size, it’s actually a full size book. It brought tears to my eyes many times. I have no idea what a 3rd degree block is. Hopefully you can learn and be a good nurse! EKGs are for the doctors to read. So don’t be too hard on yourself. But you should probably know what normal sinus rhythm looks like… 👍🏼
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2024
A
Alex h.
Chelsea, US
★★★★★ 5
My teacher thinks some of the ekgs are wrong
Format: Paperback
Can anyone put me in contact with the author of this book? My ekg/cardiology teacher is slandering her name and saying some of the rhythms she has in this book are wrong. Really upsets me because he is only a nurse and teaching a pre paramedic course. Doctors and cardiologist were the ones who cited this book. The rhythms are correct, my teacher just wants to think he is smarter than everyone else when it comes to cardiology. Otherwise I love this book and very helpful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2023

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