Color | Silver |
---|---|
Brand | Park Tool |
Material | Plastic |
Item Length | 11.63 Inches |
Item Weight | 8 ounces |
Item Package Quantity | 1 |
Head Style | Open End |
Finish Type | Polished |
Operation Mode | Mechanical |
Manufacturer | Park Tool |
UPC | 751738251560 763477004178 744904873376 |
Global Trade Identification Number | 00763477004178 |
Part Number | QKHCW17 |
Item model number | 145120 |
Is Discontinued By Manufacturer | No |
Size | One Size |
Style | HCW-17 Fixed-Gear Lockring Wrench |
Finish | Polished |
Power Source | Hand Powered |
Included Components | Chain, Cassette & Freewheel |
Batteries Included? | No |
Batteries Required? | No |

Image Unavailable
Color:
-
-
-
- To view this video download Flash Player
-
-
-
-
VIDEO
-
Park Tool Head-Gear Lockring Wrench HCW17
Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
Color | Silver |
Brand | Park Tool |
Material | Plastic |
Item Length | 11.63 Inches |
Item Weight | 8 ounces |
About this item
- The HCW-17 features two different radius hooks for a precise fit on most head-gear lockrings
- One is sized to fit rings with an outside diameter of 41 to 42mm.
- The other side fits rings of 43 to 44mm
- Also fits single-speed cassette hubs using lockrings with external notches
Frequently bought together

Frequently purchased items with fast delivery
Product Description


Park Tool HCW-17 Fixed-Gear Bicycle Lockring Wrench
The Park Tool HCW-17 removes and installs external notched lockrings, which are found on fixed-gear rear cogs, single speed cassette hubs, adjustable cup-and-cone bottom brackets, and some mid-drive e-bike motor lockrings including Batang BBSH & BBS02. The HCW-17 features two different radius hooks for a precise fit on 41, 42, 43, and 44mm lockrings. Constructed from spring steel and nickel plated for a lifetime of use. 11 5/8" (29cm) in length for excellent leverage.

Park Tool manufactures a full line of wrenches and tools for every fitting found on a bicycle, including bottom bracket & hub lockrings. Here are a few options we make that are similar to the HCW-17:
![]()
HCW-17 Lockring Tool
|
![]()
HCW-5 Lockring Tool
|
![]()
HCW-11 Adjustable Cup Wrench
|
![]()
HCW-18 Bottom Bracket Tool
|
![]()
HCW-4 Crank/Bottom Bracket Wrench
|
|
---|---|---|---|---|---|
Add to Cart
|
Add to Cart
|
Add to Cart
|
Add to Cart
|
||
Customer Reviews |
— |
4.6 out of 5 stars 1,508
|
4.7 out of 5 stars 476
|
4.5 out of 5 stars 398
|
4.7 out of 5 stars 796
|
Price | — no data | $22.95$22.95 | $17.95$17.95 | $15.95$15.95 | $32.95$32.95 |
Typical Applications | Notched lockrings found on fixed gears, cup & cone bottom brackets, & e-drive motors | Bottom bracket lockrings | Bottom bracket adjusting cups common on older English bicycles and less expensive bicycles | One piece cranks | Fixed cups on cup-and-cone bottom brackets |
Tool Fitting #1 | Notched lockrings with 41-42mm OD | 3-notch lockrings with 46mm OD | 16mm wrench flats | Slotted adjusting cups with 42-44mm OD | 36mm box-end wrench |
Tool Fitting #2 | Notched lockrings with 43-44mm OD | 2, 3, 4, 6 or 8 notched lockrings with 45-48mm OD | Adjustable cups with 2 recessed slots | 3-notch fixed cups with 42-46mm OD | 29mm fixed-width pin spanner |

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, our cassette and freewheel tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.
Product information
Technical Details
Additional Information
ASIN | B002PTVDP0 |
---|---|
Customer Reviews |
4.7 out of 5 stars |
Best Sellers Rank |
|
Date First Available | September 20, 2009 |
Warranty & Support
Feedback

Park Tool Head-Gear Lockring Wrench HCW17
Share:
Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.
Where did you see a lower price?
Fields with an asterisk * are required
Top Brand: Park Tool
Compare with similar items
This Item ![]() Park Tool Head-Gear Lockring Wrench HCW17 | Recommendations | |||||
Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | |
Price | $22.95$22.95 | -10% $15.95$15.95 List: $17.72 | $15.99$15.99 | $15.95$15.95 | $11.95$11.95 | $7.79$7.79 |
Delivery | Get it as soon as Thursday, Jun 19 | Get it as soon as Thursday, Jun 19 | Get it as soon as Thursday, Jun 19 | Get it as soon as Thursday, Jun 19 | — | — |
Customer Ratings | ||||||
Sold By | Bicycle Addiction | Bicycle Addiction | SONZUIA-US | Bicycle Addiction | Sheepshead Cycle | Sheepshead Cycle |
material | Plastic | Metal | 50 medium carbon steel | Aluminum | Alloy Steel | Alloy Steel |
head style | Open End | Box End | — | Fixed Square | C Shaped | C Shaped |
style | HCW-17 Fixed-Gear Lockring Wrench | — | — | Tl8370 | — | CNW-2 Chainring Nut Wrench |
item torque | — | — | — | 40 newton meters | 50 newton meters | 50 newton meters |
operation mode | Mechanical | Mechanical | — | Mechanical | Mechanical | Mechanical |
finish type | Polished | Painted | — | Powder Coated | Painted | Painted, Polished |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the wrench works well for its intended purpose and appreciate its robust construction, with one noting it's made of high-quality heat-treated steel. The tool is easy to use, fits well, and excels at removing and tightening lockrings. While some customers consider it good value, others find it a bit pricey. The slip resistance receives mixed feedback, with several customers reporting that it slips too easily.
AI Generated from the text of customer reviews
Customers find that the wrench works really well for its intended purpose and is the best choice every time.
"...reputation for excellence shines through in every aspect of this exceptional tool, from its robust construction to its versatile functionality...." Read more
"Nice tool like that it fits different sizes of lock rings on rear cogs only I don’t like is the handle don’t have a rubber grip so I would wear a..." Read more
"...the bike shop didn't last, Such an inexpensive tool yet so effective at its given job, its a must buy if you're riding fixed gear and find your cog..." Read more
"...Other then that everything was in order. It helped me do the work I needed it for. I might sell or might keep it. I have not decided yet...." Read more
Customers praise the wrench's quality, noting its robust construction and durability, with one customer highlighting its high-quality heat-treated steel and resistance to deformation under strenuous use.
"...from high-quality heat-treated steel, this wrench guarantees exceptional strength, ensuring longevity and resisting deformation under strenuous..." Read more
"...price if the took is just above twice that i bought it, this tool is sturdy, high quality steel making it easy to remove and tighten a lockring..." Read more
"Really good quality and it works well for my fixie bike and taking out the lockring and maybe taking out the bottom bracket" Read more
"...The tool’s good quality guarantees a tight, accurate fit on your lockring, and the added length both adds ideal leverage and keeps knuckles farther..." Read more
Customers find the wrench effective for removing and tightening lockrings, with one customer noting its success with stripped ones.
"...Designed with meticulous attention to detail, it effortlessly tackles the toughest lockring removal and installation tasks with unrivaled precision...." Read more
"...it, this tool is sturdy, high quality steel making it easy to remove and tighten a lockring (if you got the right size) I've used the tool twice..." Read more
"Really good quality and it works well for my fixie bike and taking out the lockring and maybe taking out the bottom bracket" Read more
"...This even took off a stripped lockring I thought was on the wheel permanently...." Read more
Customers like how the wrench fits, with one mentioning it accommodates different sizes of lock rings.
"Nice tool like that it fits different sizes of lock rings on rear cogs only I don’t like is the handle don’t have a rubber grip so I would wear a..." Read more
"...The tool’s good quality guarantees a tight, accurate fit on your lockring, and the added length both adds ideal leverage and keeps knuckles farther..." Read more
"Perfect fit, no slip." Read more
"...Wasn't the exact fit I was looking for. Was able to manage to get it loosened after widening a notch on the lockring...." Read more
Customers find the wrench easy to use, with one mentioning it's simple to handle for its size.
"...it effortlessly tackles the toughest lockring removal and installation tasks with unrivaled precision...." Read more
"Simple tool. 11.5 inches long, so sufficient leverage to get the job done...." Read more
"...a fixie single speed wheel apart, the wrench is thick and easy to handle for it's size. It come in two size on different ends." Read more
"tool difficult to use. the tooth does not easily lock onto the notch, & slips off easily...." Read more
Customers find this wrench essential for bike repairs and building, with one mentioning it's particularly useful for fixed gear bikes.
"great quality tool for bike repair" Read more
"This is a must-have for bike repairs/building. It's a good quality product at a great price...." Read more
"Another quality tool from Park. Must have for fixed gear bikes" Read more
"Essential tool for bike repair and maintenance...." Read more
Customers have mixed opinions about the wrench's value for money, with some finding it a good value while others consider it a bit pricey.
"...the original tightening at the bike shop didn't last, Such an inexpensive tool yet so effective at its given job, its a must buy if you're riding..." Read more
"Seems pricy but if you work on your own bikes it will pay for itself in two uses between the time it takes to travel to the shop, pay the shop to..." Read more
"It’s stamped metal, and at this price point, and being a Park Tool product it should be forged. But it does the job...." Read more
"...It's a good quality product at a great price. Being that it's fairly simple with no moving parts, there's not much else to say...." Read more
Customers have mixed experiences with the wrench's slip resistance, with some reporting that it slips too easily.
"...I wrapped the end I don’t use in tape, which provides a better grip and cushion. It’s Park Tool; you always get the best quality." Read more
"...no easy way to grip because of the wide, flat design took way too much effort to get good contact to remove the lockring" Read more
"Perfect fit, no slip." Read more
"...Very sturdy and easy to grip.." Read more
Reviews with images

The Essential Lockring Wrench
Top reviews from the United States
There was a problem filtering reviews. Please reload the page.
- Reviewed in the United States on July 3, 2023Item Package Quantity: 1Color: SilverVerified PurchaseWhen it comes to lockring wrenches, the Park Tool Head-Gear stands out as an unrivaled champion. Designed with meticulous attention to detail, it effortlessly tackles the toughest lockring removal and installation tasks with unrivaled precision. Crafted from high-quality heat-treated steel, this wrench guarantees exceptional strength, ensuring longevity and resisting deformation under strenuous use.
the Park Tool Head-Gear Lockring Wrench is without a doubt the finest lockring wrench in the market today. Park Tool's impeccable reputation for excellence shines through in every aspect of this exceptional tool, from its robust construction to its versatile functionality. Whether you are a professional mechanic or a passionate enthusiast, investing in the Park Tool Head-Gear Lockring Wrench ensures you have a reliable companion that will effortlessly handle any lockring challenge thrown its way. Trust the Park Tool brand, and you won't be disappointed.
5.0 out of 5 starsWhen it comes to lockring wrenches, the Park Tool Head-Gear stands out as an unrivaled champion. Designed with meticulous attention to detail, it effortlessly tackles the toughest lockring removal and installation tasks with unrivaled precision. Crafted from high-quality heat-treated steel, this wrench guarantees exceptional strength, ensuring longevity and resisting deformation under strenuous use.The Essential Lockring Wrench
Reviewed in the United States on July 3, 2023
the Park Tool Head-Gear Lockring Wrench is without a doubt the finest lockring wrench in the market today. Park Tool's impeccable reputation for excellence shines through in every aspect of this exceptional tool, from its robust construction to its versatile functionality. Whether you are a professional mechanic or a passionate enthusiast, investing in the Park Tool Head-Gear Lockring Wrench ensures you have a reliable companion that will effortlessly handle any lockring challenge thrown its way. Trust the Park Tool brand, and you won't be disappointed.
Images in this review
- Reviewed in the United States on December 15, 2023Item Package Quantity: 1Color: SilverVerified PurchaseNice tool like that it fits different sizes of lock rings on rear cogs only I don’t like is the handle don’t have a rubber grip so I would wear a pair of gloves
- Reviewed in the United States on May 23, 2021Item Package Quantity: 1Color: SilverVerified PurchaseIo begin i've been to the bike shop once and it cost me $8 to get my lock ring tightened, seeing that the price if the took is just above twice that i bought it, this tool is sturdy, high quality steel making it easy to remove and tighten a lockring (if you got the right size) I've used the tool twice already since the original tightening at the bike shop didn't last, Such an inexpensive tool yet so effective at its given job, its a must buy if you're riding fixed gear and find your cog slipping when backpedaling
- Reviewed in the United States on August 16, 2023Item Package Quantity: 1Color: SilverVerified PurchaseReally good quality and it works well for my fixie bike and taking out the lockring and maybe taking out the bottom bracket
- Reviewed in the United States on May 14, 2022Item Package Quantity: 1Color: SilverVerified PurchaseBefore I bought the wrench, I read comments about it. Someone wrote that it had sharp edges. It’s true for mine also. Other then that everything was in order. It helped me do the work I needed it for.
I might sell or might keep it. I have not decided yet. If I’ll keep it, I will smoothen out edges and wrap leather handle around it. (For better grip)
That’s all I have to say, hope info helps to someone else. 🤚🏻
- Reviewed in the United States on January 10, 2021Item Package Quantity: 1Color: SilverVerified PurchaseI was sold as soon as I changed my first cog with this tool. This even took off a stripped lockring I thought was on the wheel permanently. The tool’s good quality guarantees a tight, accurate fit on your lockring, and the added length both adds ideal leverage and keeps knuckles farther from the spokes. I wrapped the end I don’t use in tape, which provides a better grip and cushion. It’s Park Tool; you always get the best quality.
- Reviewed in the United States on November 22, 2012Item Package Quantity: 1Color: SilverVerified PurchaseHCW-17 also works(loosen/tighten) for stock locking ring on the non-drive side bottom bracket. My bike is stock non-sealed Bottom Bracket, general build for most manufacture. The locking ring is 43mm with 6 notches. I used this tool's end with 43-44mm. I could have used cressant wrench, but it would damage the clean look of the locking ring. I decided to get the correct tool HCW-17. Its strong/durable enough to last a lifetime. I did not have problem with this tool slipping when turning or getting scratch knockles or gouging the paint job in bottom bracket shell. Just be straingt when you turn. Unless you are a gorrilla, then you shouldn't be fixing bicycles!
- Reviewed in the United States on August 16, 2021Item Package Quantity: 1Color: SilverVerified PurchaseSeems pricy but if you work on your own bikes it will pay for itself in two uses between the time it takes to travel to the shop, pay the shop to work on your rear wheel, and travel home. Worked super well also.
Top reviews from other countries
-
MIKELON -ETXEBARRI-Reviewed in Spain on November 18, 2021
5.0 out of 5 stars hace su funcion
Item Package Quantity: 1Color: SilverVerified Purchasenecesaria si te gusta enredar en tema bici
- Mark C W CookReviewed in the United Kingdom on January 7, 2024
5.0 out of 5 stars Best cycling related purchase in 2023
Item Package Quantity: 1Color: SilverVerified PurchaseDoes it what is says on the tin. I only need to change my fixed gear a few times a year and usually spend 10 minutes at the job with a hammer and screwdriver, resulting in much swearing and bloody knuckles each time. I gave up on the latest job after 30 minutes hacking away at it, and purchased this tool instead. When it arrived in the post, it was larger than I expected, and gave me all the leverage and grip I needed to fix the job in 10 seconds. Without swearing and bloody knuckles. :-) If you look after fixed gear bikes, a tool like this is a welcome addition in the toolbox.
-
Adam CooperReviewed in Italy on November 1, 2021
5.0 out of 5 stars Qualità ParkTool
Item Package Quantity: 1Color: SilverVerified PurchaseRobustezza, leggerezza e resistenza all'uso.
Qualitativamente notevole.
Nessun altro commento, trattandosi di un utensile professionale ParkTool che di fatto è un riferimento nel settore.
-
RemyReviewed in France on May 11, 2021
5.0 out of 5 stars Parfait
Item Package Quantity: 1Color: SilverVerified PurchaseParfait
-
Philipp SchulzReviewed in Germany on March 4, 2025
5.0 out of 5 stars Gut für Fixie, Fixed Gear Lockring
Item Package Quantity: 1Color: SilverVerified PurchaseMacht genau was es soll. Wenn man die korrekte Seite nutzt rutscht man auch nicht ab und kriegt die 40 - 60 Nm für den Lockring auf jeden Fall hin.
Philipp SchulzGut für Fixie, Fixed Gear Lockring
Reviewed in Germany on March 4, 2025
Images in this review