Park Tool CT-3.3 Bicycle Chain Tool for 5–12-Speed and Single-Speed Chains

The Park Tool CT-3.3 is a bicycle chain tool listed for 5- to 12-speed derailleur chains and single-speed chains. Its adjustable locating shelf accommodates different chain widths, while the T-handle and steel body are intended for chain removal, installation and sizing.

At a glance

Designed for chain removal and installation, chain sizing and replacement.
The adjustable locating shelf is described as accommodating any chain width.
The manufacturer lists SRAM AXS and Shimano XTR 12-speed chains among compatible examples.
The driving pin is replaceable, according to the manufacturer.

Price

£27.96Save 30%

Reference price: ~~£39.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Broad stated compatibility covers 5- to 12-speed derailleur chains and several single-speed chain types.
A replaceable driving pin means the pin can be changed rather than treating it as a fixed component.
Customer feedback describes the tool as well-made and durable.

Cons

Campagnolo 11- and 12-speed rivets can be installed with this tool but cannot be peened.

Technical specifications

15 specifications

Identity
Brand	Park Tool
Model	4001998
Part number	CT-3.3
Colour	Black
Drive system	Centre Drive

Compatibility and operation
Derailleur chains	5-speed to 12-speed road and mountain bike derailleur chains
Single-speed chains	1/8", 3/16", and half link single-speed chains
Campagnolo chain rivets	The CT-3.3 will install, but not peen, Campagnolo 11 and 12-speed chain rivets.
Locating shelf	Adjustable locating shelf

Construction
Material listed	Metal
Body	Investment cast steel body
Handle	Comfortable T-handle
Replaceable part	replaceable driving pin (part # CTP)

Dimensions and installation
Dimensions listed	15.9 x 1.8 x 8.6 centimetres
Weight listed	0.01 Ounces

What to know before buying

Campagnolo 11- and 12-speed compatibility is limited to installation, not peening. Confirm the chain type and required rivet operation before choosing this tool. The listing also gives a weight of 0.01 Ounces, which may warrant checking if weight is important. The manufacturer’s stated lifetime durability in feedback is not a warranty term.

What’s in the box

Included

Chain
Cassette & Freewheel

Who is it for?

A good fit for

Home mechanics who regularly size, remove or install bicycle chains across supported derailleur and single-speed types.
Road and mountain bike owners seeking one tool for a range of stated chain widths.
Riders who value a replaceable chain-driving pin.

Less suited to

Anyone needing to peen Campagnolo 11- or 12-speed chain rivets with this tool.
Buyers looking for a complete chain-repair kit, since the supplied information describes a single tool rather than a wider set.

Park Tool CT-3.3 Bicycle Chain Tool for 5–12-Speed and Single-Speed Chains · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 2,299 ratings

5 stars85%85%
4 stars10%10%
3 stars2%2%
2 stars0%0%
1 star3%3%

Customer feedback highlights perceived build quality, durability and functionality, with some customers describing the tool as long-lasting and useful for mid-drive e-bikes. Opinions on value are mixed, with some considering it worth the investment and others finding it pricey. This feedback may matter to mechanics who expect repeated chain work, but it does not establish performance or compatibility beyond the manufacturer’s stated chain types.