Description
Check the specifications, dimensions, variation details, referenced part numbers, and available fitment evidence before matching this item to an application.
Product Description
Orange Cycle Parts Motion Pro Tool Sprocket Jammer 08-0642
- Motion Pro Tool Sprocket Jammer 08-0642
- Prevents rotation of chain and sprockets for easy removal or installation of counter shaft nut
- Can be used to pull rear wheel against chain blocks when tightening rear axle
- CNC billet aluminum construction
- Blue anodize and laser etching for easy identification
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Parameters, dimensions, material, fitment, and part numbers
Buying guidance
Quick decision
A sprockets listing with source specifications kept visible for comparison.
Fit and size notes
- No structured vehicle fitment was supplied; verify the product details against your application.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
Ratings and written reviews
4.7 / 5
143 source ratings
Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.
Jason P Discher –
I had heard bad reviews for this online, but it was cheap enough that I decided to add it to my kit. Thought it might come in handy someday and lo and behold that day came not too long after I purchased it. Friend had removed his chain and was working on replacing his front sprocket as well. Sprocket Jammer worked like a champ at both removing the old sprocket and installing the new one with the chain removed the whole time. Now sure there are more ways we could of done this, but this tool made it super simple and let us keep our momentum as we worked on his bike. Zero damage to the Jammer after we were done and box in the tool box it went.
WOODY –
This works pretty well. Used to stuff a rag in there (still a fine method). After many years of working on bikes I like this tool, good to have.
Mark –
Simple tool if you need to jam your sprocket. Works.
DOC –
Fast shipping and delivery
Bear and Angela –
Not a bad little tool. Quality construction looks great, but it’s kind of a gimmick and more of a toolbox trinket. With a few decades of working bikes, you learn that the old and usual way works better and why to fix what’s not broken (except for more power “argh argh argh argh argh,” so I rewired it!) I ended up just using a 1/2″ combo wrench, which did a better job like I have in the past.Maybe it is a better option for thinner chains or bike chains and not a 520 and up chain that I hoped to use this for.
tpr –
It works or use a rag?
mjfelton –
Great addition to your maintenance tool box. Makes tightening your chain easy and simple.
ZWimmer –
Anything from Motion Pro is always made with quality and durability in mind! Perfect little tool for getting sprockets off and for torquing down sprocket nuts. I also use the motion pro gear jammer regularly and it’s great as well!