Is Brake disc GY6, d=155mm, 50cc (139QMB/QMA) compatible with my scooter?

Please check by brand (Standard Parts), model (OE-GY6BT17012), and engine type. Not sure? Contact us — we’ll verify compatibility.

What is the price of Brake disc GY6, d=155mm, 50cc (139QMB/QMA)?

The current price is 22.80€. All prices are up to date as of 02 2026.

Is Brake disc GY6, d=155mm, 50cc (139QMB/QMA) in stock?

If available in our LV stock — ships within 24h. From EU stock it usually takes 4–9 days to arrive.

Is Brake disc GY6, d=155mm, 50cc (139QMB/QMA) an original Standard Parts part?

Yes, we sell OEM and performance parts. The type of this product is listed in the description.

Does Brake disc GY6, d=155mm, 50cc (139QMB/QMA) come with warranty?

Yes, all items include manufacturer warranty according to the rules.

How fast do you deliver Brake disc GY6, d=155mm, 50cc (139QMB/QMA)?

Ships within 24h from LV stock. From EU stock it takes 4–9 days to Latvia, then 1–2 days in the Baltics.

Which payment options are available for Brake disc GY6, d=155mm, 50cc (139QMB/QMA)?

We accept bank cards, online banking, and invoice payments.

What is the SKU or article number of Brake disc GY6, d=155mm, 50cc (139QMB/QMA)?

Product SKU: OE-GY6BT17012. It is also shown in description and specs.

Can I return Brake disc GY6, d=155mm, 50cc (139QMB/QMA) if it doesn’t fit?

Yes, unused items can be returned within 14 days according to our terms.

Can I order Brake disc GY6, d=155mm, 50cc (139QMB/QMA) if it’s not in local stock?

Yes, pre-orders are possible. Usually 4–9 days to LV warehouse (depends on supplier).

What is the current discount for Brake disc GY6, d=155mm, 50cc (139QMB/QMA)?

Brake disc GY6, d=155mm, 50cc (139QMB/QMA) is now available with a special discount in 02 2026. Price: 22.80€.

How long is the discount for Brake disc GY6, d=155mm, 50cc (139QMB/QMA) valid?

The discount is valid for a limited time in 02 2026, until the promotion ends or stock runs out.

Is the Brake disc GY6, d=155mm, 50cc (139QMB/QMA) discount automatically applied in the cart?

Yes, the promo price 22.80€ is visible immediately and applied automatically at checkout.

Discount 0.80€ Reward Points: 2

Brake disc GY6, d=155mm, 50cc (139QMB/QMA)

OE-GY6BT17012

Standard Parts

Brake disc GY6, d=155mm, 50cc (139QMB/QMA)

Name: Brake disc GY6, d=155mm, 50cc (139QMB/QMA)
Brand: Standard Parts
SKU: OE-GY6BT17012
Price: 22.8 EUR
Availability: InStock

Delivery from German Warehouse - Pirmdien

Available to order

22.80€ 23.60€

Price in reward points: 226

Inexpensive brake disc in eco quality from Asian production for the front brake. Suitable for standard everyday use on stock scooters.

Worn brake pads usually damage brake disc surfaces. This results in poorer braking performance and new pads wear quickly, too. This of course heavily affects riding safety, and the only thing that helps is getting a new disc.
Fits scooters with a disc diameter of 155mm and 3 fixing holes. For most 50cc scoots with 10 inch wheels. Diameter of interior ring is 40.5mm. To make sure these are the discs you’re looking for, please compare the product pic with your current disc.

Note: When mounting a new brake disc, always use new pads, too.

Technical details

Article no.: OE-GY6BT17012
Brand: Standard Parts
EAN: 7421083807240
Inside diameter: 40,6 mm

Outside diameter: 155 mm
Product type: Brake disc
Weight: 0,44 kg

Vehicle

Adly (Her Chee): BT 50cc 4-stroke;
AGM: GMX 450cc (QM50QT-6A);GMX 500cc (QM50QT-6A(A));
Aprilia: Sonic 50cc AC;Sonic 50cc LC;
ATU: City Star 50cc 4-stroke (YY50QT);Formula 2000 50cc 4-stroke (YY50QT-6A);Formula One 50cc 4-stroke (YY50QT-6);Level 100 50cc 4 stroke (ZS50QT);Retro Star 50cc 4-stroke (YY50QT-15);Wild Eagle 50cc 4 stroke (ZS50QT);
Baja: BE500 50cc 4-stroke;Retro 50cc;Retro RT 50cc;Suncity SC 50cc 4-stroke VIN LAW / LXKS;Suncity SC 50cc 4-stroke VIN LWGT;
Baotian: Big Panther 50cc 4-stroke (BT49QT-2A);BT49QT-3 50cc 4-stroke;BT49QT-6A1 50cc 4-stroke;BT49QT-6A4 50cc 4-stroke;BT49QT-6B1 50cc 4-stroke;BT49QT-6B4 50cc 4-stroke;BT49QT-9R1 50cc 4-stroke;BT49QT-9R3 50cc 4-stroke;BT49QT-9S1 50cc 4-stroke;BT49QT-9S3 50cc 4-stroke;BT49QT-12C1 50cc 4-stroke;BT49QT-12G 50cc 4-stroke;BT49QT-20A2 50cc 4-stroke;BT49QT 7 - 4-stroke;BT49QT 9 - 4-stroke;BT49QT 12 - 4 Temps;BT49QT 21B2 - 4-stroke;BT49QT 50cc AC 4 stroke;BT49QY 2 - 4-stroke;BT 50cc AC - 4-stroke;BT50QT 9 - 4-stroke;BT50QT 11 - 4-stroke;Eagle 50cc 4-stroke (BT49QT-9F1);Eagle 50cc 4-stroke (BT49QT-9F3);Ecobike 50cc 4-stroke (BT50QT-9);Falcon 50cc 4-stroke (BT49QT-2C);Hero 50cc 4-stroke (BT49QT-12D);Rebel 50cc 4-stroke (BT49QT-12A1);Retro 50cc 4-stroke (BT49QT-11);Retro 50cc 4-stroke (BT50QT-11);Rocky 50cc 4-stroke (BT49QT-12E);Smart Rider 50cc 4-stroke (BT49QT-7);Sprint 50cc 4-stroke (BT49QT-9);Tanco 50 - 4-stroke (BT49QT-12F);Tiger 50cc 4-stroke (BT49QT-12P1);
Beeline: Veloce 50cc;Veloce GT 50cc;
Benero: City Cruiser 50cc 4-stroke;New Retro 50cc 4-stroke;Retro 50cc 4-stroke;Speedy 50cc 4-stroke;
Benzhou: City Star 50cc 4 stroke (YY50QT);Formula 2000 50cc 4-stroke (YY50QT-6A);Formula 3000 50cc 4 stroke;Formula One 50cc 4-stroke (YY50QT-6);Retro Star 50cc 4-stroke (YY50QT-15);YY50QT 4-stroke;
Buffalo: Silver 50cc - 4-stroke;Speedy 50cc - 4-stroke;Tanco 50cc - 4-stroke;TVZ 50cc - 4-stroke;Warrior 50cc - 4-stroke;Wind 50cc - 4-stroke;ZX 50cc - 4-stroke;
CPI: Vogue 50cc 4-stroke;
Daelim: Message 50cc;Tapo 50cc;
Dazon: Diamondback 50cc 4-stroke;
Diamo: Classic 50cc 4-stroke;Tuscany 50cc 4-stroke;Velocity 50cc 4-stroke;
Dotera: Retro Star 50cc 4-stroke;
Eppella: GMX 50cc 4-stroke;
Ering: Red Wing 50cc 4-stroke;Silver Fox 50cc 4-stroke;Smart Rider 50cc 4 stroke;Sprint 50cc 4-stroke;
Explorer (ATU): Level 100 50cc 4-stroke (ZS50QT);
Flex Tech: Dolphin 50cc 4-stroke;Fun 50cc 4-stroke;Hurrican X1 50cc 4-stroke (JL50QT-4);Hurrican X2 50cc 4-stroke (YY50QT-26);Speedy 50cc 4-stroke;Sprint-10 50cc 4-stroke (SK50QT-A);Sprint-12 50cc 4-stroke (SK50QT-B);Topdrive 50cc 4-stroke (YY50QT-14);Topspeed 50cc 4 stroke;Venus 2 50cc 4-stroke;Venus 50cc 4-stroke;
Fly Scooters: IL Bello 50cc 4-stroke;
Garelli: Flexi 50cc 4-stroke;Tiesse Four 50cc 4-stroke;Xò 50cc 4-stroke;
Generic: Cracker 50cc 4-stroke;Onyx 50cc 4-stroke;Pandora 50cc 4-stroke;Race 2 50cc 4-stroke;Sirion 50cc 4-stroke;Vertigo 50cc 4-stroke;
Gilera: Easy Moving 50cc AC;
Gorilla Motor Works: Black Jack 50cc 4-stroke;Jet 50cc 4-stroke;M1 50cc 4-stroke;M2 50cc 4-stroke;R1 50cc 4-stroke;R2 50cc 4-stroke;RX-50cc 4-stroke;
Hercules: HT50QT-26 50cc 4-stroke;
Huatian: HT50QT-6;HT50QT-7;HT50QT-9;HT50QT-10;HT50QT-16;HT50QT-22;HT50QT-25;HT50QT-26;HT50QT-36;
Hyosung: NewTeeUp 50cc 4-stroke HN50QT-7;SB 50cc Gamma 2-stroke;
Italjet: Bazooka;Pista 2 50cc AC;Pista 50cc AC;Scoop 50cc;Yankee 50cc;
Jack Fox: City Star (YY50QT);Eco Fox 50cc;Formula 2000 (YY50QT-6A);Formula One (YY50QT-6);Formular 3000 50cc;GT 50cc 4-stroke;Retro Star (YY50QT-15);Speed Fox 50cc 4-stroke;Speed Fox S 50cc;YY50QT-26;
Jinlun: Fighter 50cc (JL50QT-5);JL50QT 50cc 4 stroke;
Jmstar: Accipiter 50cc 4-stroke (JSD50QT-21C);Airbus 50 [JSD50QT-18];Aquila 50cc [JSD50QT-21];BMS 50cc [JSD50QT-3];Breeze 50cc 4-stroke (JSD50QT-13);Eagle 50cc 4-stroke (JSD50QT-21);F1 50cc [JSD50QT-5A];F35 50 [JSD50QT-27R];Falcon 50cc 4-stroke (JSD50QT-21A);Firefox 50cc [JSD50QT-98];Nabs 50cc (JSD50QT-12);New Princess 50cc (JSD50QT-9B);New Sunny S1 50cc (JSD50QT-13);New Testa 50cc (JSD50QT);Princess 50cc (JSD50QT-9B);R6 50cc (JSD50QT-21);RX1 50cc (JSD50QT-21);S Only 50cc (JSD50QT-27);Sunfire Racing 50cc 4-stroke (JSD50QT-27);Sunny 50cc 4-stroke (JSD50QT-27);Sunny S1 50cc [JSD50QT-13];Sunny S2 50cc [JSD50QT-13];Sunny S4 50cc [JSD50QT-13];Sunny S5 50cc [JSD50QT-13];Sunny S6 50cc [JSD50QT-13];Testa 50cc (JSD50QT);Z-Bike 50cc 4-stroke (JSD50QT-15);Zero 50cc (JSD50QT-1);Zeus 50cc 4-stroke (JSD50QT-15C);Zeus B09 50cc [JSD50QT-27];Zeus B12 50cc [JSD50QT-27B] (4-Takt);
Jonway: Beta 50cc 4-stroke;Lambda 50cc 4-stroke (YY50QT-21);Warrior 50cc (4-stroke);YY50QT 50cc 4-stroke;
Karcher: KM 50cc 4-stroke;
Kreidler: Florett City 50cc;Flory 50cc 4-stroke;Flory Classic 50cc4 stroke;Galactica 2.0 City 50cc 4 stroke;Hiker City DD 50cc 4 stroke;Jigger City 50cc 4-stroke;RMC E 50cc 4-stroke;
Kymco: Agility Basic 50cc 4-stroke 10" (KD10SH);DJ S 50cc 4-stroke (KG10B);Filly 50cc 4-stroke (SD10AC);Super 8 50cc 4-stroke;Vitality 50cc LC - 4-stroke (Euro 2);
Lance: Cabo 50cc 4-stroke;Cali Classic 50cc 4-stroke;Havana Classic 50cc 4-stroke;PSH 50cc 4-stroke;Soho 50cc 4-stroke;
Lifan: Metro 50cc 4 stroke;S-Ray 50cc (4 stroke);Speeder 50cc (4 stroke);Traveller 125cc (4 stroke);
Longbo: LB50QT-6 50cc 4-stroke;LB50QT-22 50cc 4-stroke;
Longjia: Digita 50cc 4-stroke;Estate 50cc 4-stroke;H2 50cc LC 4-stroke 3V;LJ50QT-E 50cc 4-stroke;Speedjet-Evo 50cc 4-stroke;Trevis 50cc 4-stroke;
Malaguti: DVD 50cc 4-stroke;
Massimo: MSM50QT 50cc;SL50QT 50cc;
Mawi: City Spider 50cc 4-stroke;Eagle Wing 50cc 4-stroke;High Power 50cc 4-stroke;Speed Racer 50cc 4-stroke;Street Race 50cc 4-stroke;Super Power 50cc 4-stroke;
MBK: Booster 1992 - 1999;Evolis 50cc AC;Fizz 50cc AC;Forte 50cc AC;Rocket;

Milestorm: Roma 50;
MKS: Ecobike 50cc 4-stroke;YY50QT-26;
Moto Zeta: Rally 50cc 4-stroke;
Motobi: BC One 50cc 4-stroke;Remini 50cc 4-stroke;Siena 50cc 4-stroke;
Motofino: MF50QT-2 50cc 4-stroke;MF50QT-7 50cc 4-stroke;MF50QT 50cc 4-stroke;
Motorro: City Hooper 50cc 4-stroke;Clea 50cc 4-stroke;Cobi 50cc 4-stroke;Desire 50cc (BT49QT-12) 4-stroke;Hawk 50cc 4-stroke;Polly 50cc 4-stroke;Sprint 50cc 4-stroke;Tria 50cc (4 stroke);
Motowell: Crogen City 50cc 4-stroke;Elenor 50cc 4-stroke;Magnet 50cc 4-stroke;Magnet City 50cc AC 4-stroke;Retrosa 50cc 4-stroke;Yoyo 50cc 4-stroke;
MuZ / MZ: Emmely 50cc 4-stroke;Emmely EL2-Hybrid 50cc 4-stroke;
None: None
Peugeot: Kisbee 50cc 4-stroke;V-Clic 50cc - 4-stroke;
PGO: Big Max 50cc AC;PMX 50cc AC;PMX Naked 50cc;PMX Sport 50cc;Tornado 50cc AC;
Piaggio: Zip 1st series 50cc AC (1991 - 1994);Zip Base 50cc AC (before 1999);Zip FastRider 50cc AC;Zip RST 50cc AC (1996-2000);Zip SSL 25 (before 1999);
Pulse: BT49QT-9 50cc Scout 4-stroke;SB50QT-16 50cc Rhythm 4-stroke;
Puma: Angle 50cc;Armor 50cc;Beyond 50cc;Envy 50cc;Jakester 50cc;Juliet 50cc 4-stroke;La Vida 50cc 4-stroke;Road Star 50cc;Rocky 50;Romeo 50cc 4-stroke;Songbird 50cc;Speedo 50cc;Valentine 50cc;
Q-Link: Estate 50cc LC 4-stroke;Hawk 50cc LC 4-stroke;
Qingqi (Jinan Qingqi): Fire Storm 50cc [QM50T-10A D];Fizz 50cc [QM50QT-2];Koala 50cc [QM50QT-6D];Leopard 50cc [QM50T-8G];QM50QT 50cc 4-stroke;QM50QT 50cc 4-stroke (V-Clic);Variant 50cc [QM50T-10R];
REX (Jinan Qingqi, Shenke): Bergamo 50cc;Capriolo 50cc AC 4-stroke;Genua 50cc;Imola 50cc;Milano 50cc;Monaco 50cc;Monza 50cc;Off Limit 50cc;Palermo 50cc;RS 400 50cc 4-stroke;RS 450 50cc 4-stroke (QM50QT-6A);RS 460 50cc 4-stroke;RS 500 50cc 4-stroke QM50QT-6A(A);RS 600 50cc 4-stroke;RS 700 50cc 4-stroke;RS 750 50cc 4-stroke;RS 900 50cc 4-strokeQM50T-10A(A);
RIDE: Flash 50cc 4-stroke;
Rieju: Paseo 50cc 4-stroke;Toreo 50cc 4-stroke;
Rivero: SP54 50cc 4-stroke;Toscana 50cc 4-stroke;
Roketa: Bahama 50cc 4-stroke (MC-07);Maui 50cc 4-stroke (MC-08);MC 50cc 4-stroke;
Sachs: 49er 50cc AC - 4-stroke (FY50QT-5);
Schwinn: Hope 50cc 4-stroke;Laguna 50cc 4-stroke;Newport 50cc 4-stroke;
Seikel: Hunter 50cc (4 stroke);Knight 50cc (4 stroke);
Sprint: Basic 50cc 4-stroke;Hawk 50cc 4-stroke;Sport 50cc 4-stroke;
Sukida: Dolphin 50cc 4-stroke;Dragonfly 50cc 4-stroke;Roma 50cc 4-stroke (SK50QT-9);Sprint-10 50cc 4-stroke (SK50QT-A);Sprint-12 50cc 4-stroke (SK50QT-B);Venus 50cc 4-stroke;Viper 50cc 4-stroke;
SunL: SL50QT-2 50cc 4-stroke;SL50QT-7 50cc 4-stroke;
SYM (Sanyang): Fiddle 2 50cc 4-stroke AC after 2008 (AW05W);Orbit 1 50cc 4-stroke AC (after 2008 AV05W);Symply 50cc 4-stroke AC (AV05W);
Tank: Econo 50cc 4-stroke;Sporty 50cc 4-stroke;Urban 50cc 4-stroke;Viaggio 50cc 4-stroke;
Tauris: Brio 50cc 4-stroke;Brisa 50cc 4-stroke;Capri 50cc 4-stroke;Corona 50cc 4-stroke;Cubana 50cc 4-stroke;Torero 50cc 4-stroke;
TGB: 101R 50cc 2-stroke AC;101S 50cc 2-stroke AC;Acros Tec 50cc 2-stroke AC;
TNG: Low Boy 50cc 4-stroke;
Wangye: Fabius 50cc [WY50QT-16A];Maple II 50cc [WY50QT-86];Paladin VII 50cc [WY50QT-7A];Paladin VIII 50cc [WY50QT-7A];Purga 50cc [WY50QT-7A];T-Star 50cc [WY50QT-97];Tulanoo 50cc [WY50QT-2];WY50QT 50cc 4-stroke;X3 50cc [WY50QT-55];
Wild Eagle: Level 100 50cc 4-stroke;
WT Motors: Bilbao 50cc 4-stroke;Hollywood 50cc 4-stroke;
Xinling: TXM50 50cc 4-stroke;XL50QT 4 stroke;XL50TP 4 stroke;
Xintian (Kinroad): XT50QT 4-stroke;
Yamaha: Axis 50cc AC;Breeze 50cc AC;BW's 50cc AC;BW's Bump 50cc AC;Jog 50cc AC;Vity 125cc 2006;Vity 125cc 2007 - 2014;Zest YE 50cc AC;
ZhongYu: QT-5 50cc AC 4-stroke;QT-7 50cc AC 4-stroke;ZY50QT 50cc 4-stroke;
Zjhuatian: HT50QT 50cc 4-stroke;
Znen: Aurora 2 50cc [ZN50QT-E3];Aurora 50cc [ZN50QT-E3];Aurora 50cc [ZN50QT-E];Bob 50cc [ZN50QT-15F] (4-stroke);Bobby 50cc [ZN50QT-15C] (4-stroke);Bomb 50cc [ZN50QT-15A] (4-stroke);Eyas 50cc [ZN50QT-15D] (4-stroke);F7 50cc;F8 50cc [ZN50QT-F];F22 50cc [ZN50QT-32];F35 50cc;Falcon 2 50cc [N50QT-8A] (4-stroke);Falcon 3 50cc [ZN50QT-8B] (4-stroke);Falcon 4 50cc [ZN50QT-8C] (4-stroke);Falcon 5 50cc [ZN50QT-8D] (4-stroke);Falcon 6 50cc [ZN50QT-7E];Fly 50cc [ZN50QT-20];Goldfish 50cc;Kangaroo 50cc [ZN50QT-12];King 50cc [ZN50QT-19] (4-stroke);Legend 50cc [ZN50QT-E5];Owl 50cc [ZN50QT-15E] (4-stroke);Q 50cc [ZN50QT-11D];Quiet 50cc [ZN50QT-28];Revival 50cc [ZN50QT-D];Snail 50cc [ZN50QT-B] (4-stroke);Sun 2 50cc [ZN50QT-11] (4-stroke);Sun 50cc [ZN50QT-11] (4-stroke);Wacky 50cc [ZN50QT-15] (4-stroke);X6 50cc;X7 50cc;ZN50QT 50cc 4-stroke;
Zongshen: Cab 50cc 4-stroke (ZS50QT-4);Wind 50cc 4-stroke;ZS50QT 50cc 4-stroke;

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