The companies, which had inked a global agreement to develop bikes in August this year, are also working currently to close final commercial agreement detailing finer points of the collaboration by early next year.
"The partnership is developing very well. As business partners we have signed heads of terms...," Triumph Director of sales and marketing Paul Stroud told PTI on the sidelines of EICMA event here.
He further said the two partners are currently "working behind the scenes very quickly to finalise the commercial agreements between both companies".
When asked by when those motorcycles would be launched, he said: "We are expecting to be launching first products in markets like in early 2021."
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On the number of products the companies are trying to co-develop, Stroud said: "Those details are not available yet."
The finer details on product side could only be shared after finalisation of commercial agreements, he added.
He, however, confirmed that the bikes would be manufactured by Bajaj at its Chakan plant near Pune.
Bullish on the prospects of the proposed motorcycles in India, Stroud said, "We see an exciting future within that (200-500cc) segment in the Indian market."
In August this year, Bajaj Auto and British niche bike maker Triumph announced a global partnership for design, development and distribution of mid-range motorcycles.
The global partnership will enable Triumph to significantly expand its global reach by entering new higher market volume segments, especially within the emerging markets across the world.
On the other hand, Bajaj will gain access to Triumph brand and its motorcycles, enabling it to offer a wider range of motorcycles within its domestic market and other international markets.
Currently, Bajaj Auto's product portfolio ranges from the entry-level 110 cc CT 100 to 373 cc bike Dominar, although it also sells other higher powered bikes through its partnership with Austrian bike maker KTM.