{"product_id":"arrma-ara-2628-pinion-gear-13t-0-5-mod","title":"ARRMA ARA-2628 Pinion Gear 13T 0.5 MOD","description":"\u003cp\u003eThis ARRMA CNC-machined 13-tooth pinion gear in MOD 0.5 pitch with a 2.3mm bore is a replacement and gearing-tune option for the GROM platform. The pinion is the small gear on the motor shaft that drives the spur — the single cheapest way to change how a truck accelerates and tops out.\u003c\/p\u003e\u003cp\u003eCNC machining from metal delivers precise tooth geometry for a smooth, quiet mesh with the GROM's 0.5 MOD spur gears, and far better wear life than molded pinions. The 2.3mm bore matches the GROM motor shaft, secured with the setscrew.\u003c\/p\u003e\u003cp\u003eAs the smallest pinion in the GROM range (13T–21T), this is the torque option: harder acceleration, better wheelie response, and cooler motor temperatures at the cost of top speed — the right pick for tight spaces and grass.\u003c\/p\u003e\u003cp\u003eFitment is the ARRMA GROM platform including the Quake GROM. The package includes one 13T MOD 0.5 CNC pinion gear.\u003c\/p\u003e","brand":"PowerHobby","offers":[{"title":"Default Title","offer_id":67651095986264,"sku":"ARA-2628","price":5.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0567\/0554\/8376\/files\/ARA-2628_A0_044XIERC.jpg?v=1791386989","url":"https:\/\/beavertonmilestonehobby.com\/products\/arrma-ara-2628-pinion-gear-13t-0-5-mod","provider":"Beaverton Milestone Hobby","version":"1.0","type":"link"}