TRZ Motorsports Modular Twin-Tube Anti Roll Bar - 7" Arms - 1-5/8" Tube (Unwelded) - 650-203UW7
Ultimate Twin-Tube ARB for 1-5/8" Crossmembers with 7" Billet Arms
The TRZ Motorsports Modular Twin-Tube Anti Roll Bar - 7" Arms - 1-5/8" Tube (Unwelded) is engineered for serious drag race builds demanding maximum strength, modularity, and chassis-tuning capability. Designed specifically to weld onto a 1.625? (1-5/8") round tube crossmember, this ARB system offers a versatile mounting configuration with billet end caps that can be installed inside or outside the ARB arms for optimal packaging.
TRZ's trademark 6-lobe spindle design ensures precise left/right arm orientation, while the twin-tube chromoly construction delivers exceptional torsional rigidity. With three weld points per side and billet 7075 aluminum arms, this system has already proven itself under Pro Mod - level loads - surviving 3.6x 1/8-mile launches.
The included 7-inch arms provide increased leverage for fine-tuning chassis separation, weight transfer, and launch consistency, making this the go-to unwelded kit for builders who want absolute control.
Performance Features
- Modular design - mount ARB caps inside or outside the arms
- Built for 1-5/8? round tube crossmember installations
- Billet 7075 aluminum 7? arms for increased leverage and tuning range
- 6-lobe spindle interface ensures perfect arm alignment
- Heavy-duty twin-tube chromoly construction (inner + outer tubes)
- Three weld points per side deliver superior torsional strength
- Proven on high-power Pro Mod drag cars
- Ideal for custom race chassis requiring round-tube mounting
Quick Specs
- Arm Length: 7? (center of main tube to center of rod end)
- Mounting Style: 1-5/8? round tube crossmember
- Construction: Twin-tube chromoly (unwelded)
- Arms: Billet 7075 aluminum, CNC-machined, 1-piece
- Link Kit: 1? 4130 tubes, LH/RH inserts, rod ends, housing tabs, Grade 8 hardware
- Max ARB Length: 27.5? center-to-center (shortenable)
- End Caps: Billet aluminum with Delrin bushings
- Part Number: 650-203UW7
Frequently Asked Questions
What is the advantage of 7? ARB arms?
The longer arm length increases leverage, giving racers more tuning precision for launch balance, anti-roll control, and chassis separation.
Does this kit come pre-welded?
No - this is the unwelded version, allowing fabricators to fit and weld the assembly exactly to their chassis dimensions and crossmember location.
Why Buy from Beefcake Racing?
Beefcake Racing supplies authentic TRZ Motorsports components with fast shipping and expert tech support for high-horsepower builds. For help selecting or configuring your ARB setup, email sales@beefcakeracing.com or call 1-855-827-7223.
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