If you've spent any time shopping for aftermarket RC hop-up parts, you've seen two brands on almost every parts listing: GPM Racing and Yeah Racing. Both make CNC-machined aluminium and brass upgrade parts for Traxxas, Arrma, Axial, and most other popular brands. Both are stocked by serious RC retailers worldwide. So which one should you buy?
The short answer: both are excellent, neither is clearly superior, and the right choice depends on which specific parts you need. Here's the detailed breakdown.
Who Are GPM Racing and Yeah Racing?
GPM Racing
GPM Racing is a Taiwanese manufacturer with over 20 years in the aftermarket RC parts industry. They're one of the largest and most experienced CNC hop-up manufacturers in the world, with an enormous catalogue covering hundreds of RC models. GPM is particularly well-regarded for their aluminium machining quality, the breadth of their product range, and their brass components — especially for Traxxas crawlers. Their anodising quality is very consistent batch-to-batch, which matters if you're building a colour-matched truck.
Yeah Racing
Yeah Racing is a Hong Kong-based manufacturer known for strong quality control and an excellent range of steel and aluminium components. Yeah Racing has built a reputation for their hardened steel parts — drive shafts, turnbuckle sets with titanium-nitride coating, and precision-machined components where dimensional accuracy is critical. Their retail packaging and presentation is excellent, and their QC process is consistently well-reviewed by serious hobbyists and RC reviewers worldwide.
Quality Comparison
Both brands are genuinely top tier. This isn't a "budget vs premium" comparison — both are sourced by the world's best RC shops and used by serious hobbyists and competitive racers.
GPM Racing's aluminium machining is excellent — tight tolerances, consistent anodising, good thread quality. Yeah Racing's aluminium parts match this standard. Where they differ is in product specialisation:
- GPM tends to have a wider aluminium product range for any given model, meaning you're more likely to find the specific part you want.
- Yeah Racing tends to excel in their steel and hardened components — the metallurgy and heat treatment on their steel parts is very well-regarded.
Neither brand produces inferior parts. If you fit either brand correctly and maintain them appropriately, they'll outlast the truck they're fitted to in normal use.
Where GPM Racing Excels
Brass Products (Especially TRX-4)
GPM Racing's brass component range for the Traxxas TRX-4 is the benchmark in the industry. Their brass portal covers, axle weights, knuckles, and front bumpers are consistently excellent in machining quality, brass density, and dimensional fit. If you're building out a TRX-4 brass setup, GPM Racing is the go-to brand. Their brass range extends across multiple models with consistent quality.
Complex Multi-Piece Assemblies
GPM makes excellent multi-part assemblies — front and rear bulkhead kits, comprehensive steering assemblies, and complex link sets. Their component tolerances work well together in multi-part kits. If you're buying a complete front-end rebuild kit, GPM's packaging and fitment is excellent.
Catalogue Breadth
GPM simply makes more parts for more models. If you have a less-common model — a Traxxas Maxx, a Losi truck, an older Arrma generation — GPM Racing is more likely to have the specific part you need than Yeah Racing.
Where Yeah Racing Excels
Steel Drive Shafts and Hardened Components
Yeah Racing's steel components are exceptional. Their hardened steel drive shafts and CVD shaft sets are among the best-regarded in the hobby. The steel quality and heat treatment gives excellent fatigue resistance — these parts won't bend or snap under repeated high-load use. If you're replacing stock drive shafts on a high-power build, Yeah Racing steel shafts are the recommendation.
Turnbuckle Sets
Yeah Racing's turnbuckle sets feature titanium-nitride (TiN) coating on the steel rods, which provides excellent corrosion resistance and a distinctive gold finish. The rod ends and ball cups are precisely machined with minimal play. For geometry-critical components where precise adjustment and long-term consistency matter, Yeah Racing's turnbuckles are excellent.
Shock Towers and Structural Aluminium
Yeah Racing's aluminium shock towers are well-reviewed for consistent thickness, precise shock mount hole placement, and good anodising quality. If you need shock towers — particularly for a setup where precise shock geometry matters — either brand is fine, but Yeah Racing's execution here is consistently praised.
Overlap Products — Either Brand Is Fine
For several product categories, both brands produce parts of equivalent quality and the choice comes down to price, availability, and personal preference:
- Aluminium shock towers — both excellent
- Aluminium steering knuckles — both are direct bolt-on with good tolerances
- Servo mounts — equivalent quality, buy whichever is in stock
- Motor plates — both work well, minimal difference
In these categories, don't overthink it. Buy the one that's in stock, on sale, or the colour that matches your truck.
Price Comparison
GPM Racing and Yeah Racing are priced very similarly for equivalent parts in the Australian market. Neither brand is consistently cheaper than the other — prices vary by specific product rather than by brand. You won't save meaningful money by choosing one brand over the other; the right choice is determined by the specific product quality, not price.
Occasionally one brand will run a clearance on specific parts. When that happens, buy accordingly — the quality difference doesn't justify paying premium for a brand preference.
Which Brand Should You Start With?
Here's the practical guide by vehicle and use case:
Traxxas Slash (Bashing)
Buy from both. GPM for brass components and complex assemblies. Yeah Racing for steel drive shafts and turnbuckles. Aluminium structural parts (knuckles, shock towers, servo mount) — buy whichever is available.
Traxxas TRX-4 (Crawling)
GPM Racing is the primary recommendation for brass — their TRX-4 brass range is excellent and comprehensive. Yeah Racing for steel CVD drive shafts and shock towers. Either brand for aluminium suspension links.
Arrma Trucks
GPM has the wider Arrma catalogue. Yeah Racing covers the popular models well. Check availability for your specific model first.
The Bottom Line
GPM Racing and Yeah Racing are both outstanding brands. The hobby is lucky to have two manufacturers of this quality competing in the same segment — it keeps prices fair and quality high. Stop debating which brand is "better" and start buying the specific parts that suit your build.
We stock both brands with full compatibility information on every product. Browse the range: GPM Racing Parts | Yeah Racing Parts