www.boxertrix.com

Hello all,

I appreciate your probably sick of answering similar questions but I can't find what i'm looking for under faq. I'm looking to buy an r1100s. What are the main things I should look out for? and what generally goes wrong?

Thanks
John

1. Finish can be pretty poor - engine case paint/paint on the forks falls off
2. Discs have been known to warp (they don't have separate carriers and bolt directly to the wheel)
3. Gearbox/engine oil seals can fail - slipping clutch when warm
4. Paralever bearings can fail at 20000+ miles. Not difficult to replace but a faff all the same
5. Leaking bevel box seals - check for oil weeping from the rear rubber gaiter on drive shaft.
6. Engine itself is pretty much bulletproof.

Not the rosiest of pictures perhaps, but on the whole the S is a very reliable bike. Plenty of guys on here with high mileage (70k+)

Nicked from another thread - but pretty much sums it up.

Rods wrote: Nicked from another thread - but pretty much sums it up.

This one to be precise

viewtopic.php?t=3442&highlight=problems

Thanks Gromit

Keep in mind that 3, 4 and 5 are fixed in 2003 models onwards.

thanks chaps,

Is the 1100s 78bhp and the 1100s sport 98 bhp? or are they all 98 bhp?

Neither!!! around high 80's to low 90's.

johnl wrote:thanks chaps,

Is the 1100s 78bhp and the 1100s sport 98 bhp? or are they all 98 bhp?

All the same hp whatever the year

Thanks, I thought they were all the same. Its just my old review of the 1100s in BIKE magazine stated they had 78bhp. I thought it was more, most seem to claim 98bhp but i did suspect it was probably a bit lower.

Thanks for all your help

BMW claim 98 bhp for them, Bike magazine seems to hava their own figure, not just for BMWs, but for all bikes.

johnl wrote:Its just my old review of the 1100s in BIKE magazine stated they had 78bhp.

That'll be power measured at the back wheel on a dyno - the magazine tests don't correct for transmission losses so they always come out significantly lower than manufacturers claims and are probably more realistic. The quoted 98bhp will have been measured on an engine dyno by the manufacturer with all kinds of 'optimisations' (e.g. no gearbox!).

Losses through the transmission will be greater on a shaft-driven bike than on a chain-driven one.

You'll find the high 80's low 90's is at the back wheel on a dyno,the factors being how good the motor is,and what kind of dyno,with a pipe, filter(SJ), and various other bits and bobs,normally will show around the 100 mark.

Poor cosmetic finish, especially if you ride in the winter, private buy it is ok if the price is right (2002 BCR with 11000 went for £3500 on kick me bay).Now is the time to buy .

winger wrote:Neither!!! around high 80's to low 90's.

Unless it's the low 80's (mine)
Nigel B

Don't worry - big numbers aren't everything and different dynos can vary wildly. If you're happy with the way the bike rides just enjoy it, but if you want to chase big power figures you're riding the wrong bike. The only reason I'm modifying mine is to improve the way the power's delivered.

I sold my immaculate early injected Blackbird (claimed 164bhp) because it wasn't as much fun as my 1150GS and I rode it slower, despite it having twice the power. I think the motto for boxer BM's should be "It's not what you've got, it's how you use it".