One pull per mountain bike tire, and the cheapest injector here
Thinvik Sealant injector, 100 ml, 200 mm (7.87 in) hose
A 100 ml sealant injector with a 200 mm (7.87 in) hose and a CNC valve core remover for both Presta and Schrader cores.
What you are getting
A 100 ml sealant injector with a 200 mm (7.87 in) hose, an openable valve on the hose, and a CNC valve core remover for Presta or Schrader. $9.99 — the cheapest injector on this page.
100 ml in one pull, which is the point it makes
“Compared with the capacity on the market, Thinvik’s capacity is 100 ml… you just need to do only one shot to get your MTB tires to around 100 ml.”
That sentence is the most useful dose information on this shelf, and it comes from an injector rather than from a sealant. None of the three sealants in this survey publishes a volume per wheel; this listing says a mountain bike tire takes about 100 ml, and sizes itself to deliver it in a single pull.
Compare the SILCA injector on this page at 59 ml, sold for a one-liter bottle of SILCA sealant: two pulls per tire, by this reckoning.
Two hundred millimeters of flexible hose, “which can easily get through the valve head and get into the tire without clog”. Both Thinvik injectors publish it; the Park Tool and SILCA injectors publish no hose length at all.
Length matters on a deep-section rim: the hose has to pass through the valve stem and into the tire, and a short one leaves sealant sitting in the stem.
Its exclusion list names a brand
“Compatible with standard sealants like Stan’s No Tubes, Orange Sealant, Slime and a variety of other sealants (do not applicable for Finish Line and other sealant containing large particles).”
Three compatible brands named, one incompatible brand named, and the reason given: large particles. That is more specific than any other injector on this page — the Park Tool says “any injectable sealant” and the SILCA says it is for SILCA’s own.
It also places the Orange Seal sealants on this page squarely inside its compatibility: “Orange Sealant” is named.
The SILCA Ultimate sealant here, with its carbon fibers, is the case neither maker addresses.
“With valve core removal tool — easily remove Schrader or Presta valve core with the CNC valve core remover.”
Both valve types, where the Park Tool TSI-1 at $28.90 mentions Presta only and supplies no tool at all. On a $9.99 injector that is a genuine advantage.
What $9.99 does not buy
No gauge. The Park Tool’s graduated barrel is the one thing this cannot do, and on a shelf where nobody publishes a dose, measuring matters — though the 100 ml one-pull design is itself a kind of measure.
No spare valve cores. The Thinvik kit on this page adds six for $4 more, and a core is the part that seizes in dried latex.
What is not published
No gauge, no barrel material, no hose bore, and no statement of whether it can draw old sealant out as well as push new in — which the Park Tool explicitly can. “Smooth piston” and “slender visibility head” suggest a clear barrel, which is not the same as a graduated one.
At $9.99, against $13.99 for the kit version and $28.90 for the Park Tool, it is the cheapest way to obey the buying advice on this shelf.
Availability
Read on the day this page was built: $10 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-06. The live price is at the top of the page.
