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TRUSTED SINCE 1963
Since our origins in the back of a bike shop in 1963, it has been Park Tool's sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Just like our other 500+ tools, the TSI-1 is a product of our decades of experience and expertise in the industry, in the shop and on the trail.
Giovanni
Reviewed in Italy on August 6, 2024
Siringa perfetta!! si inserisce liquido sigillante in maniera molto rapida e semplice!soldi spesi bene...
T. Godfrey
Reviewed in the United States on August 24, 2024
The product pictures make this injector look plastic and cheap, but this is solidly built. Injecting sealant isn't rocket science, so this isn't exactly a "must have" item but it helps prevent messes and is absolutely airtight.
Customer
Reviewed in the United States on July 23, 2024
Great for both putting new sealant in and removing old sealant.
Mike Hayward
Reviewed in the United States on March 9, 2024
I have used Stans sealant for years with their branded injector that threads onto the valve. Their crappy plastic fitting and rubber hose on their injector still makes just as big of a mess as this, maybe more, and is way harder to screw on rather than just stick this needle in the valve. It doesn't go through mine clear past the rim as depicted, but either way it gets in just fine with less fuss. Also, this draws way better and it is easier to pull with the finger pulls. Less air to pump out and quicker to operate and even more importantly, quicker to clean with a bowl of soapy water. Disassembly and drying is a snap and the metal fittings are much appreciated. The sticker with oz markings is a bit hokey, but if it fails there are still ml markings on the clear plastic. They included more seals between body and metal fittings, but only one plastic injector needle. Hopefully it holds up, if not I'll order a pile of them hopefully. Either way, it is saving time and mess over the Stans injector solution. It packs up just fine in a zip lock bag with all of it's parts. Just get it, you won't regret it.
Customer
Reviewed in the United States on November 3, 2024
Works great. Has easy to read measurements on the side. No complaints. This tool has made my life way easier when applying sealant to my bikes tires. Just rinse it out when you’re done.
Yvon Dionne
Reviewed in Canada on October 16, 2024
The Park tools performance was exceptional .
Bill de Bike
Reviewed in the United States on October 13, 2024
This is a vast upgrade from the first addition, which was like one of the syringes you buy at the drug store. I maintain a fleet of over twenty bikes used in my touring business and got tired of struggling with the old one. You would inevitably get sealant all over the wheel then you were trying to unscrew the fitting from the presta valve. The new one is purpose built with a large capacity barrel and a well built plunger. Best of all it uses a long, thin tube that simply slips right into the valve after you remove the core. Quick, easy, and best of all, no mess. This winter I'm going to add sealant to all of the bikes in my fleet and feel like I got the best tool for the job.
S.E.
Reviewed in Germany on July 29, 2023
Super Teil,kein pantschen mehr!
Airspeed400
Reviewed in the United States on June 21, 2023
I was able to add additional sealant to my already mounted tire in about 5 minutes, right before a ride, with very little delay.It's easy to choose how many ml of sealant to add, easy to dispense it into the tire. Operation is smooth, easy. The product is very well made, came with spare seals for the syringe tip, too.The only compliant I have is that the label on the outside of the cylinder is paper, and when washing it up, it seems the label may not hold up well over time. I wish it was entirely plastic, not plastic on paper. (I took one star off of the cleaning section.)No matter, really, there are also markings molded into the clear plastic you could use, even without the sticker in place.Overall, a great product. Love Park Tool!
OutdoorExplorer
Reviewed in the United States on February 12, 2023
The Park Tool TSI-1 is well designed and the quality you'd expect from Park Tool. The syringe feels solid with thick, heavier plastic, and a bit of weight to it. The O-rings and other components can be replaced if/when needed and the included instruction sheet lists the Park Tool part numbers in case reordering replacement parts is needed, an option I really appreciate about many Park Tool products. It comes with two replacement O-rings, but only one proboscis tube. The proboscis tube seems good enough quality but including two instead of one would give it more value in my opinion, especially given the MSRP. Including a hard storage case would also be an improvement and add to the product's value. The sticker on the syringe allows you to measure sealant in ounces (oz) and the plastic has molded markers for CC. It easily disassembles for cleaning and so far it's worked great with the Stan's presta valves on my MTB and gravel bike.In the past, I've used cheap tubeless tire sealant injectors which work fine most of the time but inevitably wear out with any moderate use (cheap seals that can't be replaced) so this is definitely an upgrade, both in terms of overall build quality and the ability to replace worn out or lost parts, increasing it's useable lifespan. For reference, I run tubeless on my and my families bikes so end up adding/changing sealant several times per year for multiple bikes and a shop quality injector just makes practical, environmental, and financial sense.Note: I lucked out and purchased a used (Amazon Warehouse return) TSI-1 for $12.00, which, was a great deal given the ~$26.00 MSRP, but as pictured, the measurement label on the syringe was not aligned correctly and the sticker on the syringe had a sealant stain from someone who previously used it, thus the discounted price.
Digga10
Reviewed in Australia on December 9, 2023
Best I've ever used.So simple.Should come with more than one syringe 💉 as when the kids uses it, it folded
ILikeBikes
Reviewed in the United States on February 13, 2022
It's a $25 turkey baster but I still like it (mostly). Here's the deal. The plastic tube has a good chance it won't fit all the way through the valve stem. I have three different stems and the tube doesn't fit through the rubber end on any of them. You'll probably kink it trying to force it through so don't bother. The "extraction" part doesn't work so just stick with the brake-cable-as-dipstick method to check the level like you've been doing for years. The stopper seal is silicon so it will last more than a season. When you pull it to fill the syringe, it doesn't break off from the rubber part like the $4 ones do. The part you put your hand on is also held in place and centered so if you have to push a little harder get through a little clog, you can still do it with one hand. The sticker on the side for Oz. is going to come off at some point but the cc marks are part of the mould. Metric isn't that hard, you'll be fine. If you don't have problems with the $4 ones, keep buying them. If you want something that does a good job at at least filling your tires that is probably $7 over priced, this one works the best so far. Still can't stomach $25 for some plastic stuff? Put it on your birthday list.
John C
Reviewed in the United Kingdom on December 12, 2021
Works beautifully and feels very robust as you'd expect from Park Tool, easy to clean too.
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