Helix Compose FlexMount 25 CFMK25 VOL.1 Tweeter Adaptor Ring for Volvo
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The Helix CFMK25 VOL.1 is a pair of two-part FlexMount25 tweeter adaptor rings for Volvo vehicles, part of the Helix Compose range. They allow a 1" / 25 mm or 0.75" / 20 mm Helix Compose FlexMount tweeter to fit in the original factory tweeter position.
Compatible tweeters include the Ci7 T20FM-SC, Ci5 T25FM-CA, Ci3 T20FM-TI and CB T20FM-S. The Ci3 T20FM-TI tweeter is also supplied with the Helix Compose i3 Ci3 K100.2FM-S3 component speakers.
Key specifications
- Type: Two-part FlexMount25 tweeter adaptor ring
- Tweeter sizes supported: 1" / 25 mm and 0.75" / 20 mm Helix Compose FlexMount
- Vehicle fit: Various Volvo vehicles with a factory-installed tweeter
- Tweeter fixing: Snap lock
- Compatible tweeters: Ci7 T20FM-SC, Ci5 T25FM-CA, Ci3 T20FM-TI, CB T20FM-S
- In the box: 2 x FlexMount25 ring, 2 x FlexMount25 to FlexMount20 ring
FlexMount is Helix's proprietary mounting system, using vehicle-specific adaptor rings to turn a universal Helix Compose tweeter into a car-specific speaker. The two-part design supports both 1" / 25 mm and 0.75" / 20 mm tweeters, enabling a clean, acoustically optimised installation in the original mounting position.
- Vehicle-specific adaptor ring for professional, acoustically optimised integration in the original tweeter location
- Two-part design supports 1" / 25 mm and 0.75" / 20 mm Helix Compose FlexMount tweeters
- Secure tweeter fixation via snap lock for easy installation
Explore the full range in Helix Compose FlexMount.
Specification
| Type | Installation Kit |
|---|---|
| Series | FlexMount |
| Article Number | CI42502 |
| Country of Manufacture | China |
More specs
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What's Included
- 2 x FlexMount25 adaptor ring
- 2 x FlexMount25 to FlexMount20 adaptor ring
Helix
About the Helix CI42502
From our tech experts at CEN
The Helix CFMK25 VOL.1 is a two-part FlexMount25 tweeter adaptor set for Volvo vehicles with a factory tweeter. The pack holds two FlexMount25 rings and two FlexMount25-to-FlexMount20 reducers, so it takes a 1 inch (25 mm) or a 0.75 inch (20 mm) Helix Compose FlexMount tweeter.
Who it suits
Volvo owners who want a Helix tweeter in the original location. Fit the 1 inch Ci5 T25FM-CA directly, or use the reducers with 20 mm tweeters such as the Ci3 T20FM-TI, Ci7 T20FM-SC or CB T20FM-S.
Our tech experts advise
Pick the tweeter first, then decide whether you need the reducer. Helix also makes the Volvo-specific CFMK100 VOL.1 and CFMK165 VOL.1 adaptors, so a full front stage can stay in the factory positions. Installation is priced per vehicle, so contact us with your model and year and we will confirm fitment.
Explore the full Helix range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Helix
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Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
Q: Which tweeters does the CFMK25 VOL.1 fit?
A: It suits HELIX COMPOSE FlexMount tweeters: Ci7 T20FM-SC, Ci5 T25FM-CA, Ci3 T20FM-TI and CB T20FM-S tweeters, plus the tweeters in the Ci3 K100.2FM-S3, K130.2-S3, K165.2FM-S3, K165.2FM-S2, K200.2FM-S3, K200.2FM-S2 and CB K100.2-S3, K130.2-S3, K165.2-S3 component sets.
Q: Does the CFMK25 VOL.1 work with 20 mm tweeters?
A: Yes. The two-part design takes 1 inch / 25 mm tweeters directly, and the supplied FlexMount25 to FlexMount20 rings adapt it for 0.75 inch / 20 mm tweeters.
Q: Which vehicles is the CFMK25 VOL.1 for?
A: It is for various Volvo vehicles with a factory-installed tweeter. Contact CEN with your registration if you want fitment confirmed before ordering.
