RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION forged monoblock wheel, 15- to 16-inch. Dedicated time-attack spec with KR Black and WR White finishes. 6.5J to 7.0J.
Finishes
Full price, fitment check and delivery estimate within 24h.
03 /Specifications
This wheel is available in multiple fitments. Final size, offset and bolt pattern are to be confirmed with our manager.
Need exact specs for your car?
We'll include the confirmed fitment, full spec sheet and available documentation with your quote.

04 /Finish
Each finish is hand-applied and quality-checked before shipping. Custom finishes available on request add 2 weeks to lead time.
KR Black
WR White
05 /Full specifications
RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION - Track-Dedicated SONIC for Compact Platforms
The TE37 SONIC Adapted for Time Attack Competition in Compact Classes
RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION is a forged aluminum monoblock wheel designed for time attack competition in sport compact and front-wheel-drive classes. Manufactured in Japan to JWL+R Spec 2 standards, this edition applies the compact-optimized SONIC architecture to dedicated time attack width and diameter specifications in 15 and 16 inches. The TIME ATTACK EDITION serves the large and active front-wheel-drive and compact AWD time attack segment where 15- and 16-inch wheel diameters remain the practical choice for tire selection and rotational mass management.
RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION - Design and Engineering
The TIME ATTACK EDITION is built on the standard TE37 SONIC forged monoblock foundation, maintaining the spoke face taper and multi-load-path six-spoke triangular geometry. In 15 and 16 inches, the spoke proportions are scaled to maintain structural integrity under the higher lateral G-forces of time attack competition while keeping rotational inertia low. A.M.T. (Advanced Machining Technology) machined spoke lettering is applied. The width specifications of 6.5J and 7.0J are selected to match slick and semi-slick tire widths commonly used in compact time attack classes, maximizing contact patch without exceeding fender envelope constraints.
RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION Design Features
Competition Diameter and Width: 15- and 16-inch options in 6.5J and 7.0J widths for compact time attack tire packages, enabling maximum contact patch within wheel and tire clearance constraints. SONIC Architecture: spoke geometry and cross-sections scaled for smaller-diameter applications, with proportional relationship between spoke width, depth, and rim face maintained across the diameter range. A.M.T. Machining: spoke lettering applied using RAYS Advanced Machining Technology for permanent identification. Knurling: on the bead seat for competition-level tire retention.
RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION Technical Specifications
Construction: Forged aluminum alloy monoblock, 1-piece. Material: Forged aluminum alloy. Available diameters: 15 to 16 inches. Width range: 6.5J to 7.0J. Safety standard: JWL+R Spec 2. Finishes: KR (Black), WR (White). Made in Japan.
RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION Available Finishes
KR (Black): a competition-proven dark finish providing high contrast against white bodywork and brake components, popular in motorsport livery applications. WR (White): a clean, high-visibility finish used in traditional time attack and circuit competition contexts, complementing dark and colored vehicle liveries and maximizing wheel visibility in photography and video.
RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION Vehicle Fitment
The TIME ATTACK EDITION is optimized for 15- and 16-inch applications on compact sport platforms commonly used in time attack competition: Civic, Integra, 86/BRZ, Miata, Yaris GR, and similar front-wheel-drive and lightweight rear-wheel-drive competition vehicles where smaller wheel diameters reduce rotational inertia and allow use of purpose-made competition tires in these sizes.
Any Vehicle, Any Competition Class
The RAYS Volk Racing TE37 SONIC TIME ATTACK EDITION is available for any vehicle and any specification - not just the platforms listed above. Contact us with your vehicle make, model, and target configuration for a confirmed fitment specification and build quote.
06 /Certification
Documents differ by model and country. We check them for your exact wheel before you pay — and tell you upfront what's available.
01
Clear about what you get
Every quote states exactly what you're getting: brand, model, finish and documents.
02
Documents checked before payment
We confirm which certificates (TÜV, JWL, VIA) exist for your model and send them with the quote.
03
Fitment verified
Offset, PCD and brake clearance checked for your exact car.
04
Registration in your country
Tell us where the car is registered — we'll check what's needed and what we can provide.

Need documentation for your wheel?

RAYS is a Japanese wheel manufacturer founded in 1973, widely recognised as one of the world's most respected engineering-driven wheel brands. Based in Osaka, Japan, RAYS operates two performance sub-brands that define its product philosophy: Volk Racing for forged performance wheels, and gramLIGHTS for cast and flow-formed sport wheels.
Hodoor sources RAYS wheels through verified supplier channels and confirms fitment, finish and delivery before quoting.

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