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GSXR1100 lightweight rear caliper


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I want to replace the rear caliper on my GS1000 with a smaller, lighter caliper. It has a GSXR1100W caliper and bracket on there at the moment.

Was wondering if anyone knows of a direct replacement, either suzuki or otherwise that is smaller and lighter than the stock item?

TIA.

 

IMG_20210425_142211_resized_20210425_030849482.jpg

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You can use the caliper, hanger and disc off the gsxr1000 k1  K2 nisson caliper.

You will need to have a sleeve made for the hanger as they use a bigger spindle.

Have a look at my Kat project part errr. 

I've got the hanger that has the slid bit (no torque arm) but the gsxr 1000 has a standard hanger, the hanger is the same on the gsxr srad but they use the Tenco caliper, I will put some pics up for you.

Did put the waits on my kat thread.

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Pics 

Gsxr1000k1 caliper on srad 

IMG_20210505_174459847.thumb.jpg.df24f6461b6d77b4acfde047750c5154.jpg

Wight of caliper with pads

IMG_20210505_180927744.thumb.jpg.0ecadefb890085d433ad37b9782b43bd.jpg

Wight without pads

IMG_20210505_180956740.thumb.jpg.a77803c92938c31d72f04db122a1837d.jpg

 

IMG_20210505_181022198.thumb.jpg.d7b06b2843519e6a492998685127eba4.jpg

Same mounting hole spacing

IMG_20210505_181045859.thumb.jpg.9fe507248e9fa4e09559abdcdb1a5069.jpg

 

IMG_20210505_181109287.thumb.jpg.e3d38759e2cf8bca4880d4eccd14128b.jpg

With srad hanger

IMG_20210505_181241947.thumb.jpg.719be35da36c80bc05f726d89c8c3269.jpg

 

IMG_20210505_181318972.thumb.jpg.e27542c3872f09379e08d6c4ab6566c4.jpg

If you use a gsxr1000/srad hanger you will need the disc (all the same for gsxr1000k1 and srad) as the disc is a 220mm instead of a 240mm but they have the same bolt mounting holes as the slingshot and bandit wheels.

Hope this helps.

Nice GS buy the way (y)

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Thanks for the info Wraith. my caliper does not have the torque arm, the bracket fits in a slot in the swingarm. i want to keep it underslung as it is.

I suppose i could always just machine off the lug on the caliper for the torque arm.

I will have to measure the diameter of the disc, i cant remember what it is offhand.

  • Like 1
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The Harris rear calipers look to me like copies of the titchy AP Racing rear calipers that are still available new. Obviously you'd then have to make a new carrier. A more cost-effective option is a small rear Brembo from a Ducati/Aprilia (yawn, seemingly on 90% of specials now). Discacciati do some nice small rear calipers. They aren't cheap but they're still half the cost of an ISR or AP Racing equivalent.

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2 hours ago, Wagola said:

The later GSXR1000 rear calipers, K3/K4 I think don't have the torque arm connecting hole as the they have the slot in the mounting bracket as you have.

Slot type as fitted to my kat gsxr750wr swing arm and wheel with the k3/4 rear disc, caliper and hanger.

IMG_20200812_193551422.thumb.jpg.e71992f130fd349b4af3a9e314de87fb.jpg

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10 hours ago, colinworth79 said:

Dont use the mini ap caliper if you want a decent back brake as they dont provide alot of stopping force . 

My bike just passes mot each year it's that bad. Likely I dont use the back brake much.

Handy info on using the 1000 k1 caliper.

I know what you mean. One of my bikes has a Harrison mini twin-pot rear caliper and it needs big-boots to induce any real stopping power. Handy for hill starts though:).

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4 minutes ago, Dezza said:

The older one should be gold: it's from the old 'Goldline' range of the mid-1980s. I bought one many moons ago from Spondon. The newer version is the budget mass-produced version now common on Italian bikes :).

Old one was black when I got it. 

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