Our customers say…

Customers consistently praise NGK's iridium spark plugs for their high quality and noticeable performance improvements on both cars and bikes. Common benefits include smoother starts, better throttle response, and increased fuel efficiency. Although they cost slightly more, customers find them worth the investment for their long-term gains. The feedback frequently highlights enhanced responsiveness and smoother engine performance. Overall, NGK iridium spark plugs are recommended for their reliability and effectiveness in improving engine dynamics.

AI-generated from the text of our verified customer reviews

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More miles, a cleaner burn...

02 October 2024 by Alex W

I've been using Iridium plugs in cars and bikes for decades now, once I've changed a vehicle over to them, I've never then needed to change the plugs again in my ownership, despite doing thousands of miles! Copper is great, but it's soft, so over time the gap widens and if not run at the right temperature, the metal fouls, not so with Iridiums, brilliant.

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NGK Iridium Plugs - CR8EIX

26 September 2023 by Anonymous

Used nothing but NGK plugs for years on both cars and bikes - good availability and quality.
These iridium plugs might cost a bit more in the short term but pay for themselves many times over, over their lifetime.
Great service from sportsbikeshop as usual.

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Long life plugs

08 February 2022 by Sean F

Can't fault NGK Plugs. Went for these as they last longer and only a few quid more! Service from Sports Bike Shop spot on as always!

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100% Worthwhile.

10 April 2021 by Taylor P

Perfect item, engine runs significantly smoother than previous NGK plugs.

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Best plugs going

03 March 2021 by David L

These plugs are fantastic bike idles and runs so smooth well worth buying

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Iridium ngk

10 April 2020 by Charlie S

Excellent customer service, quick delivery, cannot complain. The iridium plugs makes my bike run so much better. Makes a world of difference.

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Awesome plug

01 October 2019 by Jan B

Much harder to stall a bike, more torque, slightly better acceleration and huge improvement in throttle response! Thank you.

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Makes a difference

22 June 2019 by Adam L

After replacing my old spark plugs to these iridium ones I learned what a huge difference it makes to have these. Money well spent!

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Better performance, longer lasting

12 June 2019 by Scott

Title says it all. For the extra few pound per plug, I'd definitely recommend the iridium.

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Good quality at good price

19 March 2019 by Karan S

Bike definitely starts better after replacing the plugs

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Good plug

12 March 2019 by David H

Good plug at a good price.

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Yamaha FJR 1300

20 February 2019 by John D

Fitted these to my bike and then bike runs so much better and smoothly now compared to the older and cheaper plugs

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Cheap and reliable

17 December 2018 by Andrei C

Best price I found so far, looking forward to testing it in the spring

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Excellent performance

28 April 2018 by Gwil S

Strong spark, much clearer and more regular than my old plugs. You know where you stand with NGK!

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Great price

11 April 2018 by Mark

Ordered from SBS and arrived 2 Days later..thank you

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Good upgrade

25 December 2017 by Iliya P

I changed from a regular plug to the Iridium ones and the one thing I noticed was morning cold starts in the minus temps was very smooth and got rid of some jerky riding experiences for the first 2-3 mins.

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Good

11 December 2017 by Jay A

Good price, quick delivery and the product works well!

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Good buy

16 August 2017 by Joe H

Fixed an issue on my bike where the old spark plug was rusted and water was getting into the engine. This fixed that issue and although I can't tell much difference because I'm on a 125, I'd definitely recommend this.

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APRILIA
Dorsoduro 1200 ABS	11-12
RXV 4.5	06-07, 08-11
RXV 5.5	06-07, 08-10
SXV 4.5	06-13
SXV 5.5	06-12
CAGIVA
Navigator 1000	00-02, 03-05
Navigator T 1000	00-06
Raptor 1000	00-06
Raptor 650	00-03
V Raptor 1000	00-06
X (Xtra) Raptor 1000	03-06
HONDA
CB500 X	2013 (D), 2014 (E), 2015 (F), 2015 (F)
CB500 X ABS	15-16 (F), 2016 (G), 2016 (G), 2017 (H), 2018 (J)
CBR125 R	2004 (4), 04-05 (5), 2006 (6)
HUSQVARNA
SM 400R	2002
SM 450R	03-06, 06-08
SM 510R	11-13
SM 610	98-99, 05-07
TE 250	03-05, 05-07, 08-09, 10-13
TE 310	09-10, 11-12
TE 400	2002
TE 410	99-01
TE 450	03-05, 05-07, 07-10, 11-13
TE 510	04-05, 05-07, 08-10, 11-13
KAWASAKI
KLV1000	04-05 (A2H)
KLX250	09-10 (S9F), 10-11 (SAF), 2011 (SBF), 2012 (SCF), 12-13 (SDF)
Ninja 250R	08-09 (K9F), 09-11 (KAF), 11-12 (KBF), 12-13 (KCF)
W650	99-00 (A1), 2001 (C3), 01-02 (C4), 02-04 (C5), 2004 (C6P), 2005 (C7P)
W800	2011 (ABF), 11-12 (ACF)
KTM
400 EXC Racing	00-02
520 EXC Racing	00-02
950 Adventure	03-06
950 Super Enduro R	06-07
950 Supermoto	05-07
SUZUKI
DL1000 V-Strom	02-03 (K2), 03-04 (K3), 2005 (K5), 05-06 (K6), 2007 (K7), 08-09 (K8)
DL650 V-Strom	2004 (K4), 04-05 (K5), 05-06 (K6)
DL650A V-Strom	06-07 (K7), 07-08 (K8), 08-09 (K9), 09-11 (L0), 2011 (L1)
DR-Z400 S	2001 (K1), 01-02 (K2), 02-04 (K3), 2004 (K4), 04-06 (K5), 99-01 (Y)
DR-Z400E	2001 (K1), 2002 (K2), 2003 (K3), 04-05 (K4)
DR-Z400SM	05-06 (K5), 2006 (K6), 06-08 (K7)
DR125 SM	08-10 (K9), 10-12 (L0)
GSF400 Bandit	91-93 (M), 1993 (P), 93-95 (R)
GSF650 A Bandit	2005 (K5)
GSF650 Bandit	2005 (K5), 05-07 (K6)
GSF650 SA Bandit	2005 (K5), 05-07 (K6)
GSX1400	01-02 (K2), 02-04 (K3), 2004 (K4), 05-06 (K5), 2006 (K6)
GSX650 F	08-09 (K8), 2009 (K9), 10-11 (L0), 11-12 (L1), 12-24 (L2)
RV125 Van Van	2003 (K3), 03-04 (K4), 04-05 (K5), 05-06 (K6), 06-07 (K7), 07-08 (K8), 08-09 (K9), 09-12 (L0), 12-13 (L3)
SV1000	03-04 (K3), 04-05 (K4), 2005 (K5)
SV1000 Classic	2007 (K7)
SV1000 S	03-04 (K3), 04-05 (K4), 05-06 (K5), 06-07 (K6)
SV650	00-01 (K1), 01-03 (K2), 03-04 (K3), 2004 (K4), 2005 (K5), 05-07 (K6), 2007 (K7), 2008 (K8), 1999 (X), 99-00 (Y)
SV650 S	00-01 (K1), 01-03 (K2), 03-04 (K3), 2004 (K4), 2005 (K5), 05-06 (K6), 06-07 (K7), 2008 (K8), 1999 (X), 99-00 (Y)
TL1000 S	1997 (V), 1998 (W), 98-00 (X), 00-01 (Y)
TRIUMPH
Speed Triple 1050	04-06 (Nissin Caliper), 2005, 2007 (Nissin Caliper), 07-08, 08-10 (Brembo Caliper), 11-13, 14-15, 16-17, 2018
Sprint GT 1050 ABS	10-17
Tiger 1050	06-12, 2013
Tiger 1050 ABS	06-12, 2013
Tiger 1215 Explorer	11-15, 11-24, 16-24
Trophy 1215	12-24
Trophy SE 1215	12-24
YAMAHA
FJR1300	00-01, 01-02, 03-05
FJR1300 A	03-05, 05-08, 09-12, 13-16
FZR400 RR	92-96
FZR400 RR SP	1990, 91-92
FZS600 Fazer	98-99, 00-01, 2002, 02-04, 00-01 (S)
WR125R	09-17
WR125X	09-17
WR250F	01-06
XJ600 N Diversion	95-96, 1996, 96-97, 97-04
YZF-R125	08-13

NGK Iridium Spark Plug - CR8EIX

Premium, longer lasting iridium spark plug

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Verified Customer Reviews for NGK Iridium Spark Plug