Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: guest1378 on November 23, 2011, 10:54:23 PM

Title: SRX400 tyre choice
Post by: guest1378 on November 23, 2011, 10:54:23 PM
Hi everyone!

Yesterday I won an SRX400 on ebay.  Hurrah!!!  I'm not collecting it until Sunday though.

The seller states that it needs a new front tyre (current one is on legal limit) - does anyone have any tyre recommendations please?

Thanks.

Hazel
Title: Re: SRX400 tyre choice
Post by: themoudie on November 24, 2011, 12:14:30 AM
Aye sfb,

Welcome and congratulations! :)

Bridgestone BT45 or Avon RoadRider. Haven't tried Continental, but not heard bad spoken. Dunlops are good, but maybe wear a bit quick, K82 under 3,000 miles on the back afore the canvas showed! ::) ::) ::) Metzeler/Pirelli, I used to use, until rapid wear, variable wear and delaminating tread from the carcase and some wee slides changed my opinion! :( Maxxis if you can get them do good mileage, but can be a bit on the hard side and skaty in cold wet weather.

Hope you enjoy the SRX.

My regards, Bill.
Title: Re: SRX400 tyre choice
Post by: Steve H on November 24, 2011, 11:28:13 AM
My main recommendation would be to stick with the stock sizes, oversized tyres mess with the handling.
Title: Re: SRX400 tyre choice
Post by: tj63 on November 24, 2011, 12:40:12 PM
Bridgestone BT 45, definitely.  Sizes and pressures are: 

F110/80 H17  2.3 Bar
R12080 H18  2.5 Bar


Trevor
Title: Re: SRX400 tyre choice
Post by: Steve H on November 24, 2011, 01:15:35 PM
Earlier twinshock models have different sizes. Details can be found HERE (http://www.srx600.net/technical/gen_spec/genspec8.php&heading=Chassis)
Title: Re: SRX400 tyre choice
Post by: guest1378 on November 24, 2011, 05:48:49 PM
Thanks!  That gives me some good ideas to start with, I'll check out the prices and sizes later.

Title: Re: SRX400 tyre choice
Post by: themoudie on November 24, 2011, 11:18:13 PM
My main recommendation would be to stick with the stock sizes, oversized tyres mess with the handling.

Aye sfb,

I cannot emphasise enough the importance of Steve's comment above and his recommendation that you check the tyre sizes for the earlier twin shock model.

A 110/80 H17 on the front of 'Sally' SRX600 1986 (had the 1987 3 spoke alloy wheels fitted from a SRX400), made her roll like a drunken sailor on shore leave, on banding, tar joints, linear abraded surfaces and worst of all, the tramlines/ditches/canals created on worn out roads by 'Super-single' lorry wheels.

Re-fitting a standard 100/80 H17 made a completely confidence inspiring front end return. No weave or wander and rapid steering.  :)

Check your pressures every time you go out, a couple of points out in Bars or psi will make all the difference.

'Super-singles' is a rant subject in my opinion and I need the shut eye tonight! >:( So will say no more.

All the best, Bill.
Title: Re: SRX400 tyre choice
Post by: guest1378 on November 27, 2011, 04:37:42 PM
Well, it's currently got an Avon Roadrider rear tyre and a BT45 front.  The front needs replacing soon so I suppose the obvious thing to do is get a Roadrider to match the rear?

I think RoadRiders are what I've got on my little Tribsa and they seem good. Equally, the BT45 were good when I had my W650.
Title: Re: SRX400 tyre choice
Post by: guest1378 on September 01, 2013, 05:34:05 PM
Ok, sorry to go back to this one - my tyres got through last years MOT but now definitely need replacing - the rear one is showing cracks in the sidewalls.

The link above says I should have Front 100/80-18 and Rear 120/80-18

M&P recommend Avon Roadriders in 100/90-18 and Rear 120/90-18.  Is this the size other owners of twinshock SRXs are using ?
Title: Re: SRX400 tyre choice
Post by: Steve Lake on September 01, 2013, 08:06:38 PM
If you're on a twinshock... then stick with the stuff SteveH posted... any deviation from that has in my experience been a retrograde step
120/80/18 rear
100/80/18 front

I've found nothing better than Bridgestone BT45's and I use 30psi front and back
Title: Re: SRX400 tyre choice
Post by: Propellor on September 02, 2013, 06:02:14 AM
If you're on a twinshock... then stick with the stuff SteveH posted... any deviation from that has in my experience been a retrograde step
120/80/18 rear
100/80/18 front

I've found nothing better than Bridgestone BT45's and I use 30psi front and back

I've been using em on my old Beemer and I wouldn't be easily swayed away. The grip is great wet or dry and no issues with regards to what can only be described as "feel". They may be a tad wider, size for size, than other brands. Pressures I run are to the original recommendations, wear rate is a bit of a downer for me, but the grip and feel outweigh that. They heat up nic and quickly.
Title: Re: SRX400 tyre choice
Post by: andy230 on September 02, 2013, 10:06:55 AM
BT45s for me...

a

Title: Re: SRX400 tyre choice
Post by: SRXweb on September 02, 2013, 11:59:30 AM
With Avon you need to mount a 90/90/18.

The 100/90/18 is too high and it will touch the front fender rivets. Then the rivets will chafe and your fender will vibrate and touch the tyre. So you'll have a ruined fender (split on the front), ruined rivets, and a tyre with two new lines engraved on the rubber...

I haven't experienced it personally, but many french (and swiss) SRX owners had this bad idea.

Moreover it will give you the impression to ride a truck because it's too wide. Avon are good tyres whatever conditions.

BT45 are very good but the front tyre have a funny way to use. It doesn't interfere with security but you can feel very slight vibrations.
Title: Re: SRX400 tyre choice
Post by: guest1378 on September 07, 2013, 10:52:44 AM
Thanks for the replies, great advice as always  :D