RS ownership, the good, the bad and the ugly

**Thu Jun 18, 2020 7:41 am » Post: #16 » Download Post**

Max wrote:
Andy wrote:

I expect VHM are doing St. Neots' NF5 cranks.

Andy told me that their crank man is called Frank, "Frank the Crank" I presume.

Frank Van Der Crank surely!

**Thu Jun 18, 2020 7:47 am » Post: #17 » Download Post**

daz680 wrote:Hi Paul
I'm using VHM NF5 pistons ( from SP125) and i supplied the centre seal. It is a T2 racing one that i bought from Japan along with genuine outer seals also purchased from japan. I do not know where they sourced the bearings from but it is fitted with a standard MC18 bearing on the RH side rather than the NF5 one with the seal built in.

Thanks Daz, good to know. What year is your NF5?

**Thu Jun 18, 2020 8:02 am » Post: #18 » Download Post**

Andy wrote:The RHS bearing is a special 9-ball NTN bearing, and current availability is very much like the Koyos were back in the day... non-existent! As Daz says though, an NSR bearing can be used.

daz680 wrote:
My NF5 crank was rebuilt by SEP http://www.sep-kegworth.co.uk/page1.htm
There bloody slow but when i checked my crank after the rebuild it was well within tolerance for run out.

We had to (re)rebuild a client supplied NSR250 newly "rebuilt" crank from SEP as it was atrocious! Maybe it was a one-off, or had been dropped in transit, or they've just tightened their act up, but we certainly saw why the rebuild was cheap compared to GTPE at the time! Glad your NF5 crank was good.

I expect VHM are doing St. Neots' NF5 cranks.

What were the particular issues you found with the SEP built crank?

**Thu Jun 18, 2020 10:50 am » Post: #19 » Download Post**

dan had issues with my crank from sep,went back twice i think
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ive seen more tarts than mr kipling

**Thu Jun 18, 2020 11:58 am » Post: #20 » Download Post**

Are GTPE not rebuilding NF5 cranks, as in replacement bearings and seals. They appear to really know the the RS and NSR better that anyone else.
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NSR250 MC18 SP, KR1S, TZR250 3MA, RGV250 VJ22P

**Thu Jun 18, 2020 12:26 pm » Post: #21 » Download Post**

daz680 wrote:Are GTPE not rebuilding NF5 cranks, as in replacement bearings and seals. They appear to really know the the RS and NSR better that anyone else.

No, I enquired a while back and Stephen is not rebuilding NF5 cranks any more, don't know why.
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Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto

**Thu Jun 18, 2020 2:34 pm » Post: #22 » Download Post**

paul g wrote:
Max wrote:
Andy wrote:

I expect VHM are doing St. Neots' NF5 cranks.

Andy told me that their crank man is called Frank, "Frank the Crank" I presume.

Frank Van Der Crank surely!

Sounds like the main character in one of those dodgy "educational" films Paul! ROTFLMAO

**Thu Jun 18, 2020 4:09 pm » Post: #23 » Download Post**

paul g wrote:
What were the particular issues you found with the SEP built crank?

Out of true... by a long way! The motor vibrated like a prop from one of Frank Van Der Crank's educational movies! Laughing

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Andy.
NSR-WORLD.COM

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