betaboy100 Report post Posted March 27, 2019 Hi looking at the s3 cylinder head for my 19 gasser as iv been advised to look into but im just wondering what exactly does it do and what impact it would have on the perfomance of the bike. Thank you Quote Share this post Link to post Share on other sites
copemech Report post Posted March 27, 2019 It looks blingy and makes your wallet lighter!? 1 Quote Share this post Link to post Share on other sites
tony27 Report post Posted March 27, 2019 Depends on which insert you fit, lower compression should tame it down a bit, higher more snappy Quote Share this post Link to post Share on other sites
nigel dabster Report post Posted March 28, 2019 (edited) Its suplied by GGUK FOC for the new 250 GP as a clubman friendly upgrade. Edited March 28, 2019 by nigel dabster Quote Share this post Link to post Share on other sites
betaboy100 Report post Posted March 28, 2019 Ah right dont mind how the bike feels at the moment to be honest so il leave it as it is. Quote Share this post Link to post Share on other sites
b40rt Report post Posted March 28, 2019 13 hours ago, nigel dabster said: Its suplied by GGUK FOC for the new 250 GP as a clubman friendly upgrade. Auf wiedersechen pet ? Quote Share this post Link to post Share on other sites
miner Report post Posted March 31, 2019 Not used one on the Gasser but got on my KTM 300 EXC... as above... different inserts for different compression ratios. Stock trials (my 07 250 TXT Pro) head looks like a higher CR than my KTM (15 300 EXC). More compression more punch up to a point, I. Tried the high-high insert in my KTM and it was too much, would cough stall like a 4T at low revs... ok for MX and just misbehaving but not general enduro cross country stuff. General anecdotal evidence. Quote Share this post Link to post Share on other sites
collyolly Report post Posted April 1, 2019 I would be surprised if the enduro bike was not running a higher spec of tune than a trials bike, some of the compression ratio also comes from the piston design and the bore and stroke. It's not just about changing the insert, by doing that you may have gone massive on the compression ratio ! 1 Quote Share this post Link to post Share on other sites
nigel dabster Report post Posted April 1, 2019 On 3/28/2019 at 9:48 PM, b40rt said: Auf wiedersechen pet ? explain? Quote Share this post Link to post Share on other sites
