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Park Tool SAC-2 Lube Assembly Compound is a 4-ounce precision paste engineered to increase friction between bike components, especially carbon and alloy parts. It reduces the clamping force needed to secure components safely, prevents seat post slippage, and complies with manufacturer warranty requirements. Highly rated by thousands of cyclists, it’s the go-to solution for a secure, comfortable ride.









| ASIN | B005Z4BAAK |
| Best Sellers Rank | #12,295 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #19 in Bike Lube |
| Brand | Park Tool |
| Brand Name | Park Tool |
| Compatible Material | Carbon, Aluminum, Steel |
| Container Type | Pail |
| Customer Reviews | 4.8 out of 5 stars 2,159 Reviews |
| Global Trade Identification Number | 00763477006141 |
| Included Components | Assembly Compound |
| Item Form | Liquid |
| Liquid Volume | 4 fluid ounces |
| Manufacturer | Park Tool |
| Material | Alloy Steel |
| Model Number | SAC-2 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Information | Pail |
| Part Number | QKSAC2 |
| Recommended Uses For Product | Bike |
| Specific Uses For Product | Assembly Compound |
| UPC | 763477006141 |
| Unit Count | 1 Count |
J**R
Fixed my seat slipping problem
Worked better than I expected. Completely solved my issue with bicycle seat tilt changing when riding over bumps. Increased the friction and fixed the seat in place with standard torque settings.
H**G
My knees say thank you!
This saved my knees. During long rides my seat post would slide down very very slowly. By the end of the ride my seat was too low and causing knee pain. The slipping seat post and knee pain wasn’t obvious at first. I finally used this product and my seat post does not slide down at all anymore and knee pain has been significantly reduced.
G**U
Great stuff!
I recently purchased the Park Tool SAC-2 Assembly Compound to use on my bike's carbon seatpost and handlebars, and it worked exactly as advertised. Application was easy — just a small amount provided a noticeable increase in grip, and I didn’t have to overtighten anything to keep it secure. It gave me a lot more confidence, especially knowing how sensitive carbon components can be to over-torquing. The texture of the compound is a little gritty because of the silica, but that’s what helps create the extra friction. I was careful to wipe away any excess to avoid cosmetic blemishes, as the instructions recommended. Also, I made sure not to use it on any threaded parts or bearings, since it’s not designed for that. Overall, I’m really happy with the SAC-2. It’s a simple product that makes a big difference in keeping everything tight and protected. Definitely a great buy if you're working with carbon or aluminum parts!
S**U
True Believer
Well... I was skeptical about this product. I weigh in at around 210 lbs. The street pavements in my city are, shall we say, the result of defered maintaince: lots of pot holes, asphalt patches and surface breaks. In other words, my butt was like a jack hammer on my seat post. After every ride I had to readjust my seat post. But, lo and behold, this lube compound from Park Tool actually does the job. I've ridden several hundred miles since applying the compound to my seat post and I don't think its moved a millimeter. Good product that does what it's designed to do. BTW, my seatpost is alloy, not carbon.
E**T
Good does what it says
Does what it says
J**O
Helped the seat post stay in place.
We were surprised how much of a difference this made. We had a couple of newer bikes and it didn’t matter how much effort we put into over tightening the seat post, they would not stay in place. Using this stuff we were able to tighten to a reasonable amount and over a 20 mile ride the seat post stayed in place. Exactly what was needed.
J**N
I was able to ride 3 miles at 20MPH and the bike seat never moved
So, I'm packing 350 pounds on a brand new Schwinn Electric Bike and the bike seat kept slowly sliding down after 10 minutes of riding the bike. This supergrip compound did the trick. After applying this product to my alloy aluminum e-Bike seat post, I was able to ride 3 miles at 20MPH and the bike seat never moved. Amazing recommendation. This product was not available at the local sports stores so Amazon Prime came through for me as usual. Thanks team! Creates a tighter grip between surfaces, reducing the amount of clamping force needed to safely secure a component Ideal for carbon or lightweight alloy bike handlebars, stems and seat posts.
T**Y
FRICTION!
My One Up dropper post has always slipped in the seat post of my Hightower. I previously tried the Finish Line carbon grip paste, but that had absolutely no effect and the dropper would still slip. The grit in the Finish Line paste is fairly coarse/large and I suspect the grit was not actually getting between the interface when inserting post due to the clearance being tighter than the size of the grit. The Park Tools carbon grip compound has a much smaller, finer grit than the Finish Line product and initially I wasn't convinced there was anything in it when feeling the compound. I applied the Park Tools compound to the whole tube, convinced it wouldn't work, but then I couldn't get the post to go down fully due to all the friction! I had to remove the compound and apply to a much smaller area of the post to get it to insert and even then I could feel there was significant friction. The carbon compound product that you need will likely depend on how tight the interference is between your seat and post, but I found this to work where the Finish Line product did not.
P**E
High quality grease
High quality grease from park tools. What’s not to like
S**Y
Great quality
Works perfectly. Nice and fine.
V**N
Good
Good
E**O
Die Park Tool Supergrip Carbon und Legierung Montagemasse – Ein Schmiermittel-Geniestreich
Die Park Tool Supergrip Carbon und Legierung Montagemasse, diese phänomenale 113-ml-Tube voller schmierigem Genie, hat meinen Werkstattalltag grundlegend revolutioniert. Wer dachte, dass ein Schmiermittel langweilig ist, wird von diesem Produkt eines Besseren belehrt. Und bevor wir uns ins technische Getümmel stürzen, muss ich erwähnen, dass die Lieferung von Amazon wie immer so schnell war, dass ich kaum Zeit hatte, meinen Werkzeugkasten auszumisten. **Verpackung und Lieferung:** Die Tube kam in einem kartonierten Röckchen, als wäre sie für einen Ballabend bereit. Aber lass dich nicht täuschen, es ist eine Ballnacht in deiner Werkstatt, die du mit diesem Schmiermittel haben wirst. Dank Amazon war die Lieferung so pfeilschnell, dass selbst mein Hochgeschwindigkeits-Internetrouter neidisch wurde. **Design und Anwendung:** Die Tube selbst sieht aus, als wäre sie für die Ewigkeit gemacht. Carbon und Legierung, das klingt nach Technik, und das ist es auch. Der Verschluss ist ein technisches Meisterwerk. Man könnte meinen, es sei der Turboantrieb eines Raumschiffs. Aber genug mit den Äußerlichkeiten, kommen wir zur Sache. **Technische Details:** Die Supergrip Montagemasse ist so vielseitig wie ein Schweizer Taschenmesser in Schmiermittelgestalt. Sie wurde speziell entwickelt, um Kohlefaser- und Aluminiumkomponenten zu schützen und zu schmieren. Das bedeutet, du kannst sie auf deinen teuersten Carbon-Rennradteilen genauso verwenden wie auf deiner robusten Alu-MTB-Ausrüstung. Die Konsistenz ist wie flüssiges Seidenpapier, das auf deine Komponenten gleitet und sich dann in einen schützenden Film verwandelt. Ein kleines bisschen reicht aus, und schon fühlen sich deine Teile so geschmeidig an, als wären sie gerade aus der Schmiede von Hephaistos himself gekommen. **Leistung und Haltbarkeit:** Nun, die eigentliche Show beginnt, wenn du dein Fahrrad oder deine Ausrüstung in Aktion setzt. Die Supergrip Montagemasse macht, was sie am besten kann - sie reduziert Reibung und erhöht die Lebensdauer deiner Komponenten. Dein Fahrrad wird über die Straße fliegen, als wäre es auf einem Seidentuch montiert. Und das Beste? Es hält und hält und hält. Es ist langlebig wie ein Cockroach im Atomkrieg. **Fazit:** Die Park Tool Supergrip Carbon und Legierung Montagemasse hat meinen Werkstattalltag verändert. Sie ist so technisch beeindruckend, dass sogar mein Laptop neidisch auf ihre Geschwindigkeit ist. Und dank Amazon war die Lieferung ein Blitz, der selbst einen Lichtstrahl alt aussehen ließ. Also, gönn deinem Bike das Beste, gönn ihm Supergrip, und du wirst nie wieder das gleiche Fahrgefühl haben. Bewertung: 5 von 5 Schraubenschlüsseln mit Raketenantrieb! 🚀
M**M
Good quality
It works. I tried it on the saddle and it worked
Trustpilot
1 day ago
2 months ago